use crate::ln::msgs::DecodeError;
use crate::ln::{PaymentPreimage, PaymentHash, PaymentSecret};
use crate::routing::gossip::NetworkUpdate;
-use crate::util::ser::{BigSize, FixedLengthReader, Writeable, Writer, MaybeReadable, Readable, VecReadWrapper, VecWriteWrapper, OptionDeserWrapper};
+use crate::util::ser::{BigSize, FixedLengthReader, Writeable, Writer, MaybeReadable, Readable, WithoutLength, OptionDeserWrapper};
use crate::routing::router::{RouteHop, RouteParameters};
use bitcoin::{PackedLockTime, Transaction};
/// The script which should be used in the transaction output.
output_script: Script,
/// The `user_channel_id` value passed in to [`ChannelManager::create_channel`], or a
- /// random value for an inbound channel.
+ /// random value for an inbound channel. This may be zero for objects serialized with LDK
+ /// versions prior to 0.0.113.
///
/// [`ChannelManager::create_channel`]: crate::ln::channelmanager::ChannelManager::create_channel
user_channel_id: u128,
/// [`ChannelManager::claim_funds`]: crate::ln::channelmanager::ChannelManager::claim_funds
/// [`ChannelManager::fail_htlc_backwards`]: crate::ln::channelmanager::ChannelManager::fail_htlc_backwards
PaymentReceived {
+ /// The node that received the payment.
+ /// This is useful to identify payments which were received via [phantom node payments].
+ /// This field will always be filled in when the event was generated by LDK versions
+ /// 0.0.113 and above.
+ ///
+ /// [phantom node payments]: crate::chain::keysinterface::PhantomKeysManager
+ receiver_node_id: Option<PublicKey>,
/// The hash for which the preimage should be handed to the ChannelManager. Note that LDK will
/// not stop you from registering duplicate payment hashes for inbound payments.
payment_hash: PaymentHash,
///
/// [`ChannelManager::claim_funds`]: crate::ln::channelmanager::ChannelManager::claim_funds
PaymentClaimed {
+ /// The node that received the payment.
+ /// This is useful to identify payments which were received via [phantom node payments].
+ /// This field will always be filled in when the event was generated by LDK versions
+ /// 0.0.113 and above.
+ ///
+ /// [phantom node payments]: crate::chain::keysinterface::PhantomKeysManager
+ receiver_node_id: Option<PublicKey>,
/// The payment hash of the claimed payment. Note that LDK will not stop you from
/// registering duplicate payment hashes for inbound payments.
payment_hash: PaymentHash,
/// The `user_channel_id` value passed in to [`ChannelManager::create_channel`] for outbound
/// channels, or to [`ChannelManager::accept_inbound_channel`] for inbound channels if
/// [`UserConfig::manually_accept_inbound_channels`] config flag is set to true. Otherwise
- /// `user_channel_id` will be randomized for an inbound channel.
- /// This will always be zero for objects serialized with LDK versions prior to 0.0.102.
+ /// `user_channel_id` will be randomized for inbound channels.
+ /// This may be zero for inbound channels serialized prior to 0.0.113 and will always be
+ /// zero for objects serialized with LDK versions prior to 0.0.102.
///
/// [`ChannelManager::create_channel`]: crate::ln::channelmanager::ChannelManager::create_channel
/// [`ChannelManager::accept_inbound_channel`]: crate::ln::channelmanager::ChannelManager::accept_inbound_channel
// We never write out FundingGenerationReady events as, upon disconnection, peers
// drop any channels which have not yet exchanged funding_signed.
},
- &Event::PaymentReceived { ref payment_hash, ref amount_msat, ref purpose } => {
+ &Event::PaymentReceived { ref payment_hash, ref amount_msat, ref purpose, ref receiver_node_id } => {
1u8.write(writer)?;
let mut payment_secret = None;
let payment_preimage;
}
write_tlv_fields!(writer, {
(0, payment_hash, required),
+ (1, receiver_node_id, option),
(2, payment_secret, option),
(4, amount_msat, required),
(6, 0u64, required), // user_payment_id required for compatibility with 0.0.103 and earlier
(1, network_update, option),
(2, payment_failed_permanently, required),
(3, all_paths_failed, required),
- (5, path, vec_type),
+ (5, *path, vec_type),
(7, short_channel_id, option),
(9, retry, option),
(11, payment_id, option),
&Event::SpendableOutputs { ref outputs } => {
5u8.write(writer)?;
write_tlv_fields!(writer, {
- (0, VecWriteWrapper(outputs), required),
+ (0, WithoutLength(outputs), required),
});
},
&Event::PaymentForwarded { fee_earned_msat, prev_channel_id, claim_from_onchain_tx, next_channel_id } => {
write_tlv_fields!(writer, {
(0, payment_id, required),
(2, payment_hash, option),
- (4, path, vec_type)
+ (4, *path, vec_type)
})
},
&Event::PaymentFailed { ref payment_id, ref payment_hash } => {
// We never write the OpenChannelRequest events as, upon disconnection, peers
// drop any channels which have not yet exchanged funding_signed.
},
- &Event::PaymentClaimed { ref payment_hash, ref amount_msat, ref purpose } => {
+ &Event::PaymentClaimed { ref payment_hash, ref amount_msat, ref purpose, ref receiver_node_id } => {
19u8.write(writer)?;
write_tlv_fields!(writer, {
(0, payment_hash, required),
+ (1, receiver_node_id, option),
(2, purpose, required),
(4, amount_msat, required),
});
write_tlv_fields!(writer, {
(0, payment_id, required),
(2, payment_hash, required),
- (4, path, vec_type)
+ (4, *path, vec_type)
})
},
&Event::ProbeFailed { ref payment_id, ref payment_hash, ref path, ref short_channel_id } => {
write_tlv_fields!(writer, {
(0, payment_id, required),
(2, payment_hash, required),
- (4, path, vec_type),
+ (4, *path, vec_type),
(6, short_channel_id, option),
})
},
let mut payment_preimage = None;
let mut payment_secret = None;
let mut amount_msat = 0;
+ let mut receiver_node_id = None;
let mut _user_payment_id = None::<u64>; // For compatibility with 0.0.103 and earlier
read_tlv_fields!(reader, {
(0, payment_hash, required),
+ (1, receiver_node_id, option),
(2, payment_secret, option),
(4, amount_msat, required),
(6, _user_payment_id, option),
None => return Err(msgs::DecodeError::InvalidValue),
};
Ok(Some(Event::PaymentReceived {
+ receiver_node_id,
payment_hash,
amount_msat,
purpose,
4u8 => Ok(None),
5u8 => {
let f = || {
- let mut outputs = VecReadWrapper(Vec::new());
+ let mut outputs = WithoutLength(Vec::new());
read_tlv_fields!(reader, {
(0, outputs, required),
});
let mut payment_hash = PaymentHash([0; 32]);
let mut purpose = None;
let mut amount_msat = 0;
+ let mut receiver_node_id = None;
read_tlv_fields!(reader, {
(0, payment_hash, required),
+ (1, receiver_node_id, option),
(2, purpose, ignorable),
(4, amount_msat, required),
});
if purpose.is_none() { return Ok(None); }
Ok(Some(Event::PaymentClaimed {
+ receiver_node_id,
payment_hash,
purpose: purpose.unwrap(),
amount_msat,
///
/// Events are processed by passing an [`EventHandler`] to [`process_pending_events`].
///
+/// Implementations of this trait may also feature an async version of event handling, as shown with
+/// [`ChannelManager::process_pending_events_async`] and
+/// [`ChainMonitor::process_pending_events_async`].
+///
/// # Requirements
///
/// When using this trait, [`process_pending_events`] will call [`handle_event`] for each pending
/// [`handle_event`]: EventHandler::handle_event
/// [`ChannelManager::process_pending_events`]: crate::ln::channelmanager::ChannelManager#method.process_pending_events
/// [`ChainMonitor::process_pending_events`]: crate::chain::chainmonitor::ChainMonitor#method.process_pending_events
+/// [`ChannelManager::process_pending_events_async`]: crate::ln::channelmanager::ChannelManager::process_pending_events_async
+/// [`ChainMonitor::process_pending_events_async`]: crate::chain::chainmonitor::ChainMonitor::process_pending_events_async
pub trait EventsProvider {
/// Processes any events generated since the last call using the given event handler.
///
}
/// A trait implemented for objects handling events from [`EventsProvider`].
+///
+/// An async variation also exists for implementations of [`EventsProvider`] that support async
+/// event handling. The async event handler should satisfy the generic bounds: `F:
+/// core::future::Future, H: Fn(Event) -> F`.
pub trait EventHandler {
/// Handles the given [`Event`].
///
/// See [`EventsProvider`] for details that must be considered when implementing this method.
- fn handle_event(&self, event: &Event);
+ fn handle_event(&self, event: Event);
}
-impl<F> EventHandler for F where F: Fn(&Event) {
- fn handle_event(&self, event: &Event) {
+impl<F> EventHandler for F where F: Fn(Event) {
+ fn handle_event(&self, event: Event) {
self(event)
}
}
impl<T: EventHandler> EventHandler for Arc<T> {
- fn handle_event(&self, event: &Event) {
+ fn handle_event(&self, event: Event) {
self.deref().handle_event(event)
}
}
projects / rust-lightning / blobdiff