relay_loop().await from main relay function (#829)

bridges/relays/substrate/src/finality_pipeline.rs

@@ -126,5 +126,6 @@ pub async fn run<SourceChain, TargetChain, P>(
 		},
 		metrics_params,
 		futures::future::pending(),
-	);
+	)
+	.await;
 }

bridges/relays/substrate/src/rialto_millau/millau_messages_to_rialto.rs

@@ -125,7 +125,7 @@ type MillauSourceClient = SubstrateMessagesSource<Millau, MillauMessagesToRialto
 type RialtoTargetClient = SubstrateMessagesTarget<Rialto, MillauMessagesToRialto>;
 
 /// Run Millau-to-Rialto messages sync.
-pub fn run(
+pub async fn run(
 	millau_client: MillauClient,
 	millau_sign: MillauSigningParams,
 	rialto_client: RialtoClient,
@@ -185,5 +185,6 @@ pub fn run(
 		RialtoTargetClient::new(rialto_client, lane, lane_id, MILLAU_BRIDGE_INSTANCE),
 		metrics_params,
 		futures::future::pending(),
-	);
+	)
+	.await;
 }

bridges/relays/substrate/src/rialto_millau/mod.rs

@@ -198,7 +198,8 @@ async fn run_relay_messages(command: cli::RelayMessages) -> Result<(), String> {
 				rialto_sign,
 				lane.into(),
 				prometheus_params.into(),
-			);
+			)
+			.await;
 		}
 		cli::RelayMessages::RialtoToMillau {
 			rialto,
@@ -220,7 +221,8 @@ async fn run_relay_messages(command: cli::RelayMessages) -> Result<(), String> {
 				millau_sign,
 				lane.into(),
 				prometheus_params.into(),
-			);
+			)
+			.await;
 		}
 	}
 	Ok(())

bridges/relays/substrate/src/rialto_millau/rialto_messages_to_millau.rs

@@ -125,7 +125,7 @@ type RialtoSourceClient = SubstrateMessagesSource<Rialto, RialtoMessagesToMillau
 type MillauTargetClient = SubstrateMessagesTarget<Millau, RialtoMessagesToMillau>;
 
 /// Run Rialto-to-Millau messages sync.
-pub fn run(
+pub async fn run(
 	rialto_client: RialtoClient,
 	rialto_sign: RialtoSigningParams,
 	millau_client: MillauClient,
@@ -184,5 +184,6 @@ pub fn run(
 		MillauTargetClient::new(millau_client, lane, lane_id, RIALTO_BRIDGE_INSTANCE),
 		metrics_params,
 		futures::future::pending(),
-	);
+	)
+	.await;
 }