Call OnionMessageHandler::timer_tick_occurred

lightning-background-processor processes events provided by the
PeerManager's OnionMessageHandler for when a connection is needed. If a
connection is not established in a reasonable amount of time, drop any
buffered onion messages by calling timer_tick_occurred.

lightning-background-processor/src/lib.rs

@@ -30,6 +30,7 @@ use lightning::events::{Event, PathFailure};
 #[cfg(feature = "std")]
 use lightning::events::{EventHandler, EventsProvider};
 use lightning::ln::channelmanager::ChannelManager;
+use lightning::ln::msgs::OnionMessageHandler;
 use lightning::ln::peer_handler::APeerManager;
 use lightning::routing::gossip::{NetworkGraph, P2PGossipSync};
 use lightning::routing::utxo::UtxoLookup;
@@ -104,6 +105,8 @@ const PING_TIMER: u64 = 30;
 #[cfg(test)]
 const PING_TIMER: u64 = 1;
 
+const ONION_MESSAGE_HANDLER_TIMER: u64 = 10;
+
 /// Prune the network graph of stale entries hourly.
 const NETWORK_PRUNE_TIMER: u64 = 60 * 60;
 
@@ -283,6 +286,7 @@ macro_rules! define_run_body {
 		$chain_monitor.rebroadcast_pending_claims();
 
 		let mut last_freshness_call = $get_timer(FRESHNESS_TIMER);
+		let mut last_onion_message_handler_call = $get_timer(ONION_MESSAGE_HANDLER_TIMER);
 		let mut last_ping_call = $get_timer(PING_TIMER);
 		let mut last_prune_call = $get_timer(FIRST_NETWORK_PRUNE_TIMER);
 		let mut last_scorer_persist_call = $get_timer(SCORER_PERSIST_TIMER);
@@ -336,6 +340,11 @@ macro_rules! define_run_body {
 				$channel_manager.timer_tick_occurred();
 				last_freshness_call = $get_timer(FRESHNESS_TIMER);
 			}
+			if $timer_elapsed(&mut last_onion_message_handler_call, ONION_MESSAGE_HANDLER_TIMER) {
+				log_trace!($logger, "Calling OnionMessageHandler's timer_tick_occurred");
+				$peer_manager.onion_message_handler().timer_tick_occurred();
+				last_onion_message_handler_call = $get_timer(ONION_MESSAGE_HANDLER_TIMER);
+			}
 			if await_slow {
 				// On various platforms, we may be starved of CPU cycles for several reasons.
 				// E.g. on iOS, if we've been in the background, we will be entirely paused.