crate::lightning::ln::channelmanager::ChannelManager { inner: ObjOps::heap_alloc(ret), is_owned: true }
}
-/// Gets the current configuration applied to all new channels, as
+/// Gets the current configuration applied to all new channels.
#[must_use]
#[no_mangle]
pub extern "C" fn ChannelManager_get_current_default_configuration(this_arg: &crate::lightning::ln::channelmanager::ChannelManager) -> crate::lightning::util::config::UserConfig {
local_ret
}
-/// Regenerates channel_announcements and generates a signed node_announcement from the given
-/// arguments, providing them in corresponding events via
-/// [`get_and_clear_pending_msg_events`], if at least one public channel has been confirmed
-/// on-chain. This effectively re-broadcasts all channel announcements and sends our node
-/// announcement to ensure that the lightning P2P network is aware of the channels we have and
-/// our network addresses.
-///
-/// `rgb` is a node \"color\" and `alias` is a printable human-readable string to describe this
-/// node to humans. They carry no in-protocol meaning.
-///
-/// `addresses` represent the set (possibly empty) of socket addresses on which this node
-/// accepts incoming connections. These will be included in the node_announcement, publicly
-/// tying these addresses together and to this node. If you wish to preserve user privacy,
-/// addresses should likely contain only Tor Onion addresses.
-///
-/// Panics if `addresses` is absurdly large (more than 100).
-///
-/// [`get_and_clear_pending_msg_events`]: MessageSendEventsProvider::get_and_clear_pending_msg_events
-#[no_mangle]
-pub extern "C" fn ChannelManager_broadcast_node_announcement(this_arg: &crate::lightning::ln::channelmanager::ChannelManager, mut rgb: crate::c_types::ThreeBytes, mut alias: crate::c_types::ThirtyTwoBytes, mut addresses: crate::c_types::derived::CVec_NetAddressZ) {
- let mut local_addresses = Vec::new(); for mut item in addresses.into_rust().drain(..) { local_addresses.push( { item.into_native() }); };
- unsafe { &*ObjOps::untweak_ptr(this_arg.inner) }.broadcast_node_announcement(rgb.data, alias.data, local_addresses)
-}
-
/// Atomically updates the [`ChannelConfig`] for the given channels.
///
/// Once the updates are applied, each eligible channel (advertised with a known short channel
unsafe { &*ObjOps::untweak_ptr(this_arg.inner) }.await_persistable_update()
}
+/// Gets a [`Future`] that completes when a persistable update is available. Note that
+/// callbacks registered on the [`Future`] MUST NOT call back into this [`ChannelManager`] and
+/// should instead register actions to be taken later.
+#[must_use]
+#[no_mangle]
+pub extern "C" fn ChannelManager_get_persistable_update_future(this_arg: &crate::lightning::ln::channelmanager::ChannelManager) -> crate::lightning::util::wakers::Future {
+ let mut ret = unsafe { &*ObjOps::untweak_ptr(this_arg.inner) }.get_persistable_update_future();
+ crate::lightning::util::wakers::Future { inner: ObjOps::heap_alloc(ret), is_owned: true }
+}
+
/// Gets the latest best block which was connected either via the [`chain::Listen`] or
/// [`chain::Confirm`] interfaces.
#[must_use]
handle_channel_reestablish: ChannelManager_ChannelMessageHandler_handle_channel_reestablish,
handle_channel_update: ChannelManager_ChannelMessageHandler_handle_channel_update,
handle_error: ChannelManager_ChannelMessageHandler_handle_error,
+ provided_node_features: ChannelManager_ChannelMessageHandler_provided_node_features,
+ provided_init_features: ChannelManager_ChannelMessageHandler_provided_init_features,
MessageSendEventsProvider: crate::lightning::util::events::MessageSendEventsProvider {
this_arg: unsafe { ObjOps::untweak_ptr((*this_arg).inner) as *mut c_void },
free: None,
}
}
-extern "C" fn ChannelManager_ChannelMessageHandler_handle_open_channel(this_arg: *const c_void, mut counterparty_node_id: crate::c_types::PublicKey, mut their_features: crate::lightning::ln::features::InitFeatures, msg: &crate::lightning::ln::msgs::OpenChannel) {
- <nativeChannelManager as lightning::ln::msgs::ChannelMessageHandler<>>::handle_open_channel(unsafe { &mut *(this_arg as *mut nativeChannelManager) }, &counterparty_node_id.into_rust(), *unsafe { Box::from_raw(their_features.take_inner()) }, msg.get_native_ref())
+extern "C" fn ChannelManager_ChannelMessageHandler_handle_open_channel(this_arg: *const c_void, mut their_node_id: crate::c_types::PublicKey, mut their_features: crate::lightning::ln::features::InitFeatures, msg: &crate::lightning::ln::msgs::OpenChannel) {
+ <nativeChannelManager as lightning::ln::msgs::ChannelMessageHandler<>>::handle_open_channel(unsafe { &mut *(this_arg as *mut nativeChannelManager) }, &their_node_id.into_rust(), *unsafe { Box::from_raw(their_features.take_inner()) }, msg.get_native_ref())
}
-extern "C" fn ChannelManager_ChannelMessageHandler_handle_accept_channel(this_arg: *const c_void, mut counterparty_node_id: crate::c_types::PublicKey, mut their_features: crate::lightning::ln::features::InitFeatures, msg: &crate::lightning::ln::msgs::AcceptChannel) {
- <nativeChannelManager as lightning::ln::msgs::ChannelMessageHandler<>>::handle_accept_channel(unsafe { &mut *(this_arg as *mut nativeChannelManager) }, &counterparty_node_id.into_rust(), *unsafe { Box::from_raw(their_features.take_inner()) }, msg.get_native_ref())
+extern "C" fn ChannelManager_ChannelMessageHandler_handle_accept_channel(this_arg: *const c_void, mut their_node_id: crate::c_types::PublicKey, mut their_features: crate::lightning::ln::features::InitFeatures, msg: &crate::lightning::ln::msgs::AcceptChannel) {
+ <nativeChannelManager as lightning::ln::msgs::ChannelMessageHandler<>>::handle_accept_channel(unsafe { &mut *(this_arg as *mut nativeChannelManager) }, &their_node_id.into_rust(), *unsafe { Box::from_raw(their_features.take_inner()) }, msg.get_native_ref())
}
-extern "C" fn ChannelManager_ChannelMessageHandler_handle_funding_created(this_arg: *const c_void, mut counterparty_node_id: crate::c_types::PublicKey, msg: &crate::lightning::ln::msgs::FundingCreated) {
- <nativeChannelManager as lightning::ln::msgs::ChannelMessageHandler<>>::handle_funding_created(unsafe { &mut *(this_arg as *mut nativeChannelManager) }, &counterparty_node_id.into_rust(), msg.get_native_ref())
+extern "C" fn ChannelManager_ChannelMessageHandler_handle_funding_created(this_arg: *const c_void, mut their_node_id: crate::c_types::PublicKey, msg: &crate::lightning::ln::msgs::FundingCreated) {
+ <nativeChannelManager as lightning::ln::msgs::ChannelMessageHandler<>>::handle_funding_created(unsafe { &mut *(this_arg as *mut nativeChannelManager) }, &their_node_id.into_rust(), msg.get_native_ref())
}
-extern "C" fn ChannelManager_ChannelMessageHandler_handle_funding_signed(this_arg: *const c_void, mut counterparty_node_id: crate::c_types::PublicKey, msg: &crate::lightning::ln::msgs::FundingSigned) {
- <nativeChannelManager as lightning::ln::msgs::ChannelMessageHandler<>>::handle_funding_signed(unsafe { &mut *(this_arg as *mut nativeChannelManager) }, &counterparty_node_id.into_rust(), msg.get_native_ref())
+extern "C" fn ChannelManager_ChannelMessageHandler_handle_funding_signed(this_arg: *const c_void, mut their_node_id: crate::c_types::PublicKey, msg: &crate::lightning::ln::msgs::FundingSigned) {
+ <nativeChannelManager as lightning::ln::msgs::ChannelMessageHandler<>>::handle_funding_signed(unsafe { &mut *(this_arg as *mut nativeChannelManager) }, &their_node_id.into_rust(), msg.get_native_ref())
}
-extern "C" fn ChannelManager_ChannelMessageHandler_handle_channel_ready(this_arg: *const c_void, mut counterparty_node_id: crate::c_types::PublicKey, msg: &crate::lightning::ln::msgs::ChannelReady) {
- <nativeChannelManager as lightning::ln::msgs::ChannelMessageHandler<>>::handle_channel_ready(unsafe { &mut *(this_arg as *mut nativeChannelManager) }, &counterparty_node_id.into_rust(), msg.get_native_ref())
+extern "C" fn ChannelManager_ChannelMessageHandler_handle_channel_ready(this_arg: *const c_void, mut their_node_id: crate::c_types::PublicKey, msg: &crate::lightning::ln::msgs::ChannelReady) {
+ <nativeChannelManager as lightning::ln::msgs::ChannelMessageHandler<>>::handle_channel_ready(unsafe { &mut *(this_arg as *mut nativeChannelManager) }, &their_node_id.into_rust(), msg.get_native_ref())
}
-extern "C" fn ChannelManager_ChannelMessageHandler_handle_shutdown(this_arg: *const c_void, mut counterparty_node_id: crate::c_types::PublicKey, their_features: &crate::lightning::ln::features::InitFeatures, msg: &crate::lightning::ln::msgs::Shutdown) {
- <nativeChannelManager as lightning::ln::msgs::ChannelMessageHandler<>>::handle_shutdown(unsafe { &mut *(this_arg as *mut nativeChannelManager) }, &counterparty_node_id.into_rust(), their_features.get_native_ref(), msg.get_native_ref())
+extern "C" fn ChannelManager_ChannelMessageHandler_handle_shutdown(this_arg: *const c_void, mut their_node_id: crate::c_types::PublicKey, their_features: &crate::lightning::ln::features::InitFeatures, msg: &crate::lightning::ln::msgs::Shutdown) {
+ <nativeChannelManager as lightning::ln::msgs::ChannelMessageHandler<>>::handle_shutdown(unsafe { &mut *(this_arg as *mut nativeChannelManager) }, &their_node_id.into_rust(), their_features.get_native_ref(), msg.get_native_ref())
}
-extern "C" fn ChannelManager_ChannelMessageHandler_handle_closing_signed(this_arg: *const c_void, mut counterparty_node_id: crate::c_types::PublicKey, msg: &crate::lightning::ln::msgs::ClosingSigned) {
- <nativeChannelManager as lightning::ln::msgs::ChannelMessageHandler<>>::handle_closing_signed(unsafe { &mut *(this_arg as *mut nativeChannelManager) }, &counterparty_node_id.into_rust(), msg.get_native_ref())
+extern "C" fn ChannelManager_ChannelMessageHandler_handle_closing_signed(this_arg: *const c_void, mut their_node_id: crate::c_types::PublicKey, msg: &crate::lightning::ln::msgs::ClosingSigned) {
+ <nativeChannelManager as lightning::ln::msgs::ChannelMessageHandler<>>::handle_closing_signed(unsafe { &mut *(this_arg as *mut nativeChannelManager) }, &their_node_id.into_rust(), msg.get_native_ref())
}
-extern "C" fn ChannelManager_ChannelMessageHandler_handle_update_add_htlc(this_arg: *const c_void, mut counterparty_node_id: crate::c_types::PublicKey, msg: &crate::lightning::ln::msgs::UpdateAddHTLC) {
- <nativeChannelManager as lightning::ln::msgs::ChannelMessageHandler<>>::handle_update_add_htlc(unsafe { &mut *(this_arg as *mut nativeChannelManager) }, &counterparty_node_id.into_rust(), msg.get_native_ref())
+extern "C" fn ChannelManager_ChannelMessageHandler_handle_update_add_htlc(this_arg: *const c_void, mut their_node_id: crate::c_types::PublicKey, msg: &crate::lightning::ln::msgs::UpdateAddHTLC) {
+ <nativeChannelManager as lightning::ln::msgs::ChannelMessageHandler<>>::handle_update_add_htlc(unsafe { &mut *(this_arg as *mut nativeChannelManager) }, &their_node_id.into_rust(), msg.get_native_ref())
}
-extern "C" fn ChannelManager_ChannelMessageHandler_handle_update_fulfill_htlc(this_arg: *const c_void, mut counterparty_node_id: crate::c_types::PublicKey, msg: &crate::lightning::ln::msgs::UpdateFulfillHTLC) {
- <nativeChannelManager as lightning::ln::msgs::ChannelMessageHandler<>>::handle_update_fulfill_htlc(unsafe { &mut *(this_arg as *mut nativeChannelManager) }, &counterparty_node_id.into_rust(), msg.get_native_ref())
+extern "C" fn ChannelManager_ChannelMessageHandler_handle_update_fulfill_htlc(this_arg: *const c_void, mut their_node_id: crate::c_types::PublicKey, msg: &crate::lightning::ln::msgs::UpdateFulfillHTLC) {
+ <nativeChannelManager as lightning::ln::msgs::ChannelMessageHandler<>>::handle_update_fulfill_htlc(unsafe { &mut *(this_arg as *mut nativeChannelManager) }, &their_node_id.into_rust(), msg.get_native_ref())
}
-extern "C" fn ChannelManager_ChannelMessageHandler_handle_update_fail_htlc(this_arg: *const c_void, mut counterparty_node_id: crate::c_types::PublicKey, msg: &crate::lightning::ln::msgs::UpdateFailHTLC) {
- <nativeChannelManager as lightning::ln::msgs::ChannelMessageHandler<>>::handle_update_fail_htlc(unsafe { &mut *(this_arg as *mut nativeChannelManager) }, &counterparty_node_id.into_rust(), msg.get_native_ref())
+extern "C" fn ChannelManager_ChannelMessageHandler_handle_update_fail_htlc(this_arg: *const c_void, mut their_node_id: crate::c_types::PublicKey, msg: &crate::lightning::ln::msgs::UpdateFailHTLC) {
+ <nativeChannelManager as lightning::ln::msgs::ChannelMessageHandler<>>::handle_update_fail_htlc(unsafe { &mut *(this_arg as *mut nativeChannelManager) }, &their_node_id.into_rust(), msg.get_native_ref())
}
-extern "C" fn ChannelManager_ChannelMessageHandler_handle_update_fail_malformed_htlc(this_arg: *const c_void, mut counterparty_node_id: crate::c_types::PublicKey, msg: &crate::lightning::ln::msgs::UpdateFailMalformedHTLC) {
- <nativeChannelManager as lightning::ln::msgs::ChannelMessageHandler<>>::handle_update_fail_malformed_htlc(unsafe { &mut *(this_arg as *mut nativeChannelManager) }, &counterparty_node_id.into_rust(), msg.get_native_ref())
+extern "C" fn ChannelManager_ChannelMessageHandler_handle_update_fail_malformed_htlc(this_arg: *const c_void, mut their_node_id: crate::c_types::PublicKey, msg: &crate::lightning::ln::msgs::UpdateFailMalformedHTLC) {
+ <nativeChannelManager as lightning::ln::msgs::ChannelMessageHandler<>>::handle_update_fail_malformed_htlc(unsafe { &mut *(this_arg as *mut nativeChannelManager) }, &their_node_id.into_rust(), msg.get_native_ref())
}
-extern "C" fn ChannelManager_ChannelMessageHandler_handle_commitment_signed(this_arg: *const c_void, mut counterparty_node_id: crate::c_types::PublicKey, msg: &crate::lightning::ln::msgs::CommitmentSigned) {
- <nativeChannelManager as lightning::ln::msgs::ChannelMessageHandler<>>::handle_commitment_signed(unsafe { &mut *(this_arg as *mut nativeChannelManager) }, &counterparty_node_id.into_rust(), msg.get_native_ref())
+extern "C" fn ChannelManager_ChannelMessageHandler_handle_commitment_signed(this_arg: *const c_void, mut their_node_id: crate::c_types::PublicKey, msg: &crate::lightning::ln::msgs::CommitmentSigned) {
+ <nativeChannelManager as lightning::ln::msgs::ChannelMessageHandler<>>::handle_commitment_signed(unsafe { &mut *(this_arg as *mut nativeChannelManager) }, &their_node_id.into_rust(), msg.get_native_ref())
}
-extern "C" fn ChannelManager_ChannelMessageHandler_handle_revoke_and_ack(this_arg: *const c_void, mut counterparty_node_id: crate::c_types::PublicKey, msg: &crate::lightning::ln::msgs::RevokeAndACK) {
- <nativeChannelManager as lightning::ln::msgs::ChannelMessageHandler<>>::handle_revoke_and_ack(unsafe { &mut *(this_arg as *mut nativeChannelManager) }, &counterparty_node_id.into_rust(), msg.get_native_ref())
+extern "C" fn ChannelManager_ChannelMessageHandler_handle_revoke_and_ack(this_arg: *const c_void, mut their_node_id: crate::c_types::PublicKey, msg: &crate::lightning::ln::msgs::RevokeAndACK) {
+ <nativeChannelManager as lightning::ln::msgs::ChannelMessageHandler<>>::handle_revoke_and_ack(unsafe { &mut *(this_arg as *mut nativeChannelManager) }, &their_node_id.into_rust(), msg.get_native_ref())
}
-extern "C" fn ChannelManager_ChannelMessageHandler_handle_update_fee(this_arg: *const c_void, mut counterparty_node_id: crate::c_types::PublicKey, msg: &crate::lightning::ln::msgs::UpdateFee) {
- <nativeChannelManager as lightning::ln::msgs::ChannelMessageHandler<>>::handle_update_fee(unsafe { &mut *(this_arg as *mut nativeChannelManager) }, &counterparty_node_id.into_rust(), msg.get_native_ref())
+extern "C" fn ChannelManager_ChannelMessageHandler_handle_update_fee(this_arg: *const c_void, mut their_node_id: crate::c_types::PublicKey, msg: &crate::lightning::ln::msgs::UpdateFee) {
+ <nativeChannelManager as lightning::ln::msgs::ChannelMessageHandler<>>::handle_update_fee(unsafe { &mut *(this_arg as *mut nativeChannelManager) }, &their_node_id.into_rust(), msg.get_native_ref())
}
-extern "C" fn ChannelManager_ChannelMessageHandler_handle_announcement_signatures(this_arg: *const c_void, mut counterparty_node_id: crate::c_types::PublicKey, msg: &crate::lightning::ln::msgs::AnnouncementSignatures) {
- <nativeChannelManager as lightning::ln::msgs::ChannelMessageHandler<>>::handle_announcement_signatures(unsafe { &mut *(this_arg as *mut nativeChannelManager) }, &counterparty_node_id.into_rust(), msg.get_native_ref())
+extern "C" fn ChannelManager_ChannelMessageHandler_handle_announcement_signatures(this_arg: *const c_void, mut their_node_id: crate::c_types::PublicKey, msg: &crate::lightning::ln::msgs::AnnouncementSignatures) {
+ <nativeChannelManager as lightning::ln::msgs::ChannelMessageHandler<>>::handle_announcement_signatures(unsafe { &mut *(this_arg as *mut nativeChannelManager) }, &their_node_id.into_rust(), msg.get_native_ref())
}
-extern "C" fn ChannelManager_ChannelMessageHandler_peer_disconnected(this_arg: *const c_void, mut counterparty_node_id: crate::c_types::PublicKey, mut no_connection_possible: bool) {
- <nativeChannelManager as lightning::ln::msgs::ChannelMessageHandler<>>::peer_disconnected(unsafe { &mut *(this_arg as *mut nativeChannelManager) }, &counterparty_node_id.into_rust(), no_connection_possible)
+extern "C" fn ChannelManager_ChannelMessageHandler_peer_disconnected(this_arg: *const c_void, mut their_node_id: crate::c_types::PublicKey, mut no_connection_possible: bool) {
+ <nativeChannelManager as lightning::ln::msgs::ChannelMessageHandler<>>::peer_disconnected(unsafe { &mut *(this_arg as *mut nativeChannelManager) }, &their_node_id.into_rust(), no_connection_possible)
}
-extern "C" fn ChannelManager_ChannelMessageHandler_peer_connected(this_arg: *const c_void, mut counterparty_node_id: crate::c_types::PublicKey, init_msg: &crate::lightning::ln::msgs::Init) {
- <nativeChannelManager as lightning::ln::msgs::ChannelMessageHandler<>>::peer_connected(unsafe { &mut *(this_arg as *mut nativeChannelManager) }, &counterparty_node_id.into_rust(), init_msg.get_native_ref())
+extern "C" fn ChannelManager_ChannelMessageHandler_peer_connected(this_arg: *const c_void, mut their_node_id: crate::c_types::PublicKey, msg: &crate::lightning::ln::msgs::Init) {
+ <nativeChannelManager as lightning::ln::msgs::ChannelMessageHandler<>>::peer_connected(unsafe { &mut *(this_arg as *mut nativeChannelManager) }, &their_node_id.into_rust(), msg.get_native_ref())
}
-extern "C" fn ChannelManager_ChannelMessageHandler_handle_channel_reestablish(this_arg: *const c_void, mut counterparty_node_id: crate::c_types::PublicKey, msg: &crate::lightning::ln::msgs::ChannelReestablish) {
- <nativeChannelManager as lightning::ln::msgs::ChannelMessageHandler<>>::handle_channel_reestablish(unsafe { &mut *(this_arg as *mut nativeChannelManager) }, &counterparty_node_id.into_rust(), msg.get_native_ref())
+extern "C" fn ChannelManager_ChannelMessageHandler_handle_channel_reestablish(this_arg: *const c_void, mut their_node_id: crate::c_types::PublicKey, msg: &crate::lightning::ln::msgs::ChannelReestablish) {
+ <nativeChannelManager as lightning::ln::msgs::ChannelMessageHandler<>>::handle_channel_reestablish(unsafe { &mut *(this_arg as *mut nativeChannelManager) }, &their_node_id.into_rust(), msg.get_native_ref())
}
-extern "C" fn ChannelManager_ChannelMessageHandler_handle_channel_update(this_arg: *const c_void, mut counterparty_node_id: crate::c_types::PublicKey, msg: &crate::lightning::ln::msgs::ChannelUpdate) {
- <nativeChannelManager as lightning::ln::msgs::ChannelMessageHandler<>>::handle_channel_update(unsafe { &mut *(this_arg as *mut nativeChannelManager) }, &counterparty_node_id.into_rust(), msg.get_native_ref())
+extern "C" fn ChannelManager_ChannelMessageHandler_handle_channel_update(this_arg: *const c_void, mut their_node_id: crate::c_types::PublicKey, msg: &crate::lightning::ln::msgs::ChannelUpdate) {
+ <nativeChannelManager as lightning::ln::msgs::ChannelMessageHandler<>>::handle_channel_update(unsafe { &mut *(this_arg as *mut nativeChannelManager) }, &their_node_id.into_rust(), msg.get_native_ref())
}
-extern "C" fn ChannelManager_ChannelMessageHandler_handle_error(this_arg: *const c_void, mut counterparty_node_id: crate::c_types::PublicKey, msg: &crate::lightning::ln::msgs::ErrorMessage) {
- <nativeChannelManager as lightning::ln::msgs::ChannelMessageHandler<>>::handle_error(unsafe { &mut *(this_arg as *mut nativeChannelManager) }, &counterparty_node_id.into_rust(), msg.get_native_ref())
+extern "C" fn ChannelManager_ChannelMessageHandler_handle_error(this_arg: *const c_void, mut their_node_id: crate::c_types::PublicKey, msg: &crate::lightning::ln::msgs::ErrorMessage) {
+ <nativeChannelManager as lightning::ln::msgs::ChannelMessageHandler<>>::handle_error(unsafe { &mut *(this_arg as *mut nativeChannelManager) }, &their_node_id.into_rust(), msg.get_native_ref())
+}
+#[must_use]
+extern "C" fn ChannelManager_ChannelMessageHandler_provided_node_features(this_arg: *const c_void) -> crate::lightning::ln::features::NodeFeatures {
+ let mut ret = <nativeChannelManager as lightning::ln::msgs::ChannelMessageHandler<>>::provided_node_features(unsafe { &mut *(this_arg as *mut nativeChannelManager) }, );
+ crate::lightning::ln::features::NodeFeatures { inner: ObjOps::heap_alloc(ret), is_owned: true }
+}
+#[must_use]
+extern "C" fn ChannelManager_ChannelMessageHandler_provided_init_features(this_arg: *const c_void, mut their_node_id: crate::c_types::PublicKey) -> crate::lightning::ln::features::InitFeatures {
+ let mut ret = <nativeChannelManager as lightning::ln::msgs::ChannelMessageHandler<>>::provided_init_features(unsafe { &mut *(this_arg as *mut nativeChannelManager) }, &their_node_id.into_rust());
+ crate::lightning::ln::features::InitFeatures { inner: ObjOps::heap_alloc(ret), is_owned: true }
}
#[no_mangle]
projects / ldk-c-bindings / blobdiff