Companion for paritytech/substrate#12764 (#1930)

* Companion for paritytech/substrate#12764

* Remove `async-trait`

* Fix trait

* update lockfile for {"substrate", "polkadot"}

Co-authored-by: parity-processbot <>

client/pov-recovery/src/lib.rs

@@ -42,7 +42,7 @@
 //! make sure that the blocks are imported in the correct order.
 
 use sc_client_api::{BlockBackend, BlockchainEvents, UsageProvider};
-use sc_consensus::import_queue::{ImportQueue, IncomingBlock};
+use sc_consensus::import_queue::{ImportQueueService, IncomingBlock};
 use sp_consensus::{BlockOrigin, BlockStatus};
 use sp_runtime::{
 	generic::BlockId,
@@ -103,7 +103,7 @@ impl RecoveryDelay {
 }
 
 /// Encapsulates the logic of the pov recovery.
-pub struct PoVRecovery<Block: BlockT, PC, IQ, RC> {
+pub struct PoVRecovery<Block: BlockT, PC, RC> {
 	/// All the pending candidates that we are waiting for to be imported or that need to be
 	/// recovered when `next_candidate_to_recover` tells us to do so.
 	pending_candidates: HashMap<Block::Hash, PendingCandidate<Block>>,
@@ -119,23 +119,22 @@ pub struct PoVRecovery<Block: BlockT, PC, IQ, RC> {
 	waiting_for_parent: HashMap<Block::Hash, Vec<Block>>,
 	recovery_delay: RecoveryDelay,
 	parachain_client: Arc<PC>,
-	parachain_import_queue: IQ,
+	parachain_import_queue: Box<dyn ImportQueueService<Block>>,
 	relay_chain_interface: RC,
 	para_id: ParaId,
 }
 
-impl<Block: BlockT, PC, IQ, RCInterface> PoVRecovery<Block, PC, IQ, RCInterface>
+impl<Block: BlockT, PC, RCInterface> PoVRecovery<Block, PC, RCInterface>
 where
 	PC: BlockBackend<Block> + BlockchainEvents<Block> + UsageProvider<Block>,
 	RCInterface: RelayChainInterface + Clone,
-	IQ: ImportQueue<Block>,
 {
 	/// Create a new instance.
 	pub fn new(
 		overseer_handle: OverseerHandle,
 		recovery_delay: RecoveryDelay,
 		parachain_client: Arc<PC>,
-		parachain_import_queue: IQ,
+		parachain_import_queue: Box<dyn ImportQueueService<Block>>,
 		relay_chain_interface: RCInterface,
 		para_id: ParaId,
 	) -> Self {

client/relay-chain-minimal-node/src/network.rs

@@ -21,6 +21,7 @@ use polkadot_node_network_protocol::PeerId;
 use sc_network::{NetworkService, SyncState};
 
 use sc_client_api::HeaderBackend;
+use sc_consensus::{BlockImportError, BlockImportStatus, JustificationSyncLink, Link};
 use sc_network_common::{
 	config::{
 		NonDefaultSetConfig, NonReservedPeerMode, NotificationHandshake, ProtocolId, SetConfig,
@@ -29,12 +30,10 @@ use sc_network_common::{
 	service::NetworkSyncForkRequest,
 	sync::{
 		message::{BlockAnnouncesHandshake, BlockRequest},
-		Metrics, SyncStatus,
+		BadPeer, Metrics, OnBlockData, PollBlockAnnounceValidation, SyncStatus,
 	},
 };
 use sc_service::{error::Error, Configuration, NetworkStarter, SpawnTaskHandle};
-use sp_consensus::BlockOrigin;
-use sp_runtime::Justifications;
 
 use std::{iter, sync::Arc};
 
@@ -80,7 +79,6 @@ pub(crate) fn build_collator_network(
 		chain_sync: Box::new(chain_sync),
 		network_config: config.network.clone(),
 		chain: client.clone(),
-		import_queue: Box::new(DummyImportQueue),
 		protocol_id,
 		metrics_registry: config.prometheus_config.as_ref().map(|config| config.registry.clone()),
 		block_announce_config,
@@ -253,28 +251,6 @@ impl<B: BlockT> sc_network_common::sync::ChainSync<B> for DummyChainSync {
 		unimplemented!("Not supported on the RPC collator")
 	}
 
-	fn on_blocks_processed(
-		&mut self,
-		_imported: usize,
-		_count: usize,
-		_results: Vec<(
-			Result<
-				sc_consensus::BlockImportStatus<polkadot_service::NumberFor<B>>,
-				sc_consensus::BlockImportError,
-			>,
-			<B as BlockT>::Hash,
-		)>,
-	) -> Box<
-		dyn Iterator<
-			Item = Result<
-				(PeerId, sc_network_common::sync::message::BlockRequest<B>),
-				sc_network_common::sync::BadPeer,
-			>,
-		>,
-	> {
-		Box::new(std::iter::empty())
-	}
-
 	fn on_justification_import(
 		&mut self,
 		_hash: <B as BlockT>::Hash,
@@ -307,12 +283,7 @@ impl<B: BlockT> sc_network_common::sync::ChainSync<B> for DummyChainSync {
 		std::task::Poll::Pending
 	}
 
-	fn peer_disconnected(
-		&mut self,
-		_who: &PeerId,
-	) -> Option<sc_network_common::sync::OnBlockData<B>> {
-		None
-	}
+	fn peer_disconnected(&mut self, _who: &PeerId) {}
 
 	fn metrics(&self) -> sc_network_common::sync::Metrics {
 		Metrics {
@@ -338,7 +309,7 @@ impl<B: BlockT> sc_network_common::sync::ChainSync<B> for DummyChainSync {
 	fn poll(
 		&mut self,
 		_cx: &mut std::task::Context,
-	) -> std::task::Poll<sc_network_common::sync::PollResult<B>> {
+	) -> std::task::Poll<PollBlockAnnounceValidation<B::Header>> {
 		std::task::Poll::Pending
 	}
 
@@ -349,37 +320,39 @@ impl<B: BlockT> sc_network_common::sync::ChainSync<B> for DummyChainSync {
 	fn num_active_peers(&self) -> usize {
 		0
 	}
+
+	fn process_block_response_data(&mut self, _blocks_to_import: Result<OnBlockData<B>, BadPeer>) {}
 }
 
-struct DummyImportQueue;
+struct DummyChainSyncService<B>(std::marker::PhantomData<B>);
 
-impl sc_service::ImportQueue<Block> for DummyImportQueue {
-	fn import_blocks(
-		&mut self,
-		_origin: BlockOrigin,
-		_blocks: Vec<sc_consensus::IncomingBlock<Block>>,
-	) {
-	}
+impl<B: BlockT> NetworkSyncForkRequest<B::Hash, NumberFor<B>> for DummyChainSyncService<B> {
+	fn set_sync_fork_request(&self, _peers: Vec<PeerId>, _hash: B::Hash, _number: NumberFor<B>) {}
+}
+
+impl<B: BlockT> JustificationSyncLink<B> for DummyChainSyncService<B> {
+	fn request_justification(&self, _hash: &B::Hash, _number: NumberFor<B>) {}
+
+	fn clear_justification_requests(&self) {}
+}
 
-	fn import_justifications(
+impl<B: BlockT> Link<B> for DummyChainSyncService<B> {
+	fn blocks_processed(
 		&mut self,
-		_who: PeerId,
-		_hash: Hash,
-		_number: NumberFor<Block>,
-		_justifications: Justifications,
+		_imported: usize,
+		_count: usize,
+		_results: Vec<(Result<BlockImportStatus<NumberFor<B>>, BlockImportError>, B::Hash)>,
 	) {
 	}
 
-	fn poll_actions(
+	fn justification_imported(
 		&mut self,
-		_cx: &mut futures::task::Context,
-		_link: &mut dyn sc_consensus::import_queue::Link<Block>,
+		_who: PeerId,
+		_hash: &B::Hash,
+		_number: NumberFor<B>,
+		_success: bool,
 	) {
 	}
-}
 
-struct DummyChainSyncService<B>(std::marker::PhantomData<B>);
-
-impl<B: BlockT> NetworkSyncForkRequest<B::Hash, NumberFor<B>> for DummyChainSyncService<B> {
-	fn set_sync_fork_request(&self, _peers: Vec<PeerId>, _hash: B::Hash, _number: NumberFor<B>) {}
+	fn request_justification(&mut self, _hash: &B::Hash, _number: NumberFor<B>) {}
 }

client/service/src/lib.rs

@@ -25,23 +25,16 @@ use polkadot_primitives::v2::CollatorPair;
 use sc_client_api::{
 	Backend as BackendT, BlockBackend, BlockchainEvents, Finalizer, UsageProvider,
 };
-use sc_consensus::{
-	import_queue::{ImportQueue, IncomingBlock, Link, RuntimeOrigin},
-	BlockImport,
-};
+use sc_consensus::{import_queue::ImportQueueService, BlockImport};
 use sc_service::{Configuration, TaskManager};
 use sp_api::ProvideRuntimeApi;
 use sp_blockchain::HeaderBackend;
-use sp_consensus::BlockOrigin;
 use sp_core::traits::SpawnNamed;
-use sp_runtime::{
-	traits::{Block as BlockT, NumberFor},
-	Justifications,
-};
+use sp_runtime::traits::Block as BlockT;
 use std::{sync::Arc, time::Duration};
 
 /// Parameters given to [`start_collator`].
-pub struct StartCollatorParams<'a, Block: BlockT, BS, Client, RCInterface, Spawner, IQ> {
+pub struct StartCollatorParams<'a, Block: BlockT, BS, Client, RCInterface, Spawner> {
 	pub block_status: Arc<BS>,
 	pub client: Arc<Client>,
 	pub announce_block: Arc<dyn Fn(Block::Hash, Option<Vec<u8>>) + Send + Sync>,
@@ -50,7 +43,7 @@ pub struct StartCollatorParams<'a, Block: BlockT, BS, Client, RCInterface, Spawn
 	pub relay_chain_interface: RCInterface,
 	pub task_manager: &'a mut TaskManager,
 	pub parachain_consensus: Box<dyn ParachainConsensus<Block>>,
-	pub import_queue: IQ,
+	pub import_queue: Box<dyn ImportQueueService<Block>>,
 	pub collator_key: CollatorPair,
 	pub relay_chain_slot_duration: Duration,
 }
@@ -60,7 +53,7 @@ pub struct StartCollatorParams<'a, Block: BlockT, BS, Client, RCInterface, Spawn
 /// A collator is similar to a validator in a normal blockchain.
 /// It is responsible for producing blocks and sending the blocks to a
 /// parachain validator for validation and inclusion into the relay chain.
-pub async fn start_collator<'a, Block, BS, Client, Backend, RCInterface, Spawner, IQ>(
+pub async fn start_collator<'a, Block, BS, Client, Backend, RCInterface, Spawner>(
 	StartCollatorParams {
 		block_status,
 		client,
@@ -73,7 +66,7 @@ pub async fn start_collator<'a, Block, BS, Client, Backend, RCInterface, Spawner
 		import_queue,
 		collator_key,
 		relay_chain_slot_duration,
-	}: StartCollatorParams<'a, Block, BS, Client, RCInterface, Spawner, IQ>,
+	}: StartCollatorParams<'a, Block, BS, Client, RCInterface, Spawner>,
 ) -> sc_service::error::Result<()>
 where
 	Block: BlockT,
@@ -92,7 +85,6 @@ where
 	Spawner: SpawnNamed + Clone + Send + Sync + 'static,
 	RCInterface: RelayChainInterface + Clone + 'static,
 	Backend: BackendT<Block> + 'static,
-	IQ: ImportQueue<Block> + 'static,
 {
 	let consensus = cumulus_client_consensus_common::run_parachain_consensus(
 		para_id,
@@ -139,21 +131,21 @@ where
 }
 
 /// Parameters given to [`start_full_node`].
-pub struct StartFullNodeParams<'a, Block: BlockT, Client, RCInterface, IQ> {
+pub struct StartFullNodeParams<'a, Block: BlockT, Client, RCInterface> {
 	pub para_id: ParaId,
 	pub client: Arc<Client>,
 	pub relay_chain_interface: RCInterface,
 	pub task_manager: &'a mut TaskManager,
 	pub announce_block: Arc<dyn Fn(Block::Hash, Option<Vec<u8>>) + Send + Sync>,
 	pub relay_chain_slot_duration: Duration,
-	pub import_queue: IQ,
+	pub import_queue: Box<dyn ImportQueueService<Block>>,
 }
 
 /// Start a full node for a parachain.
 ///
 /// A full node will only sync the given parachain and will follow the
 /// tip of the chain.
-pub fn start_full_node<Block, Client, Backend, RCInterface, IQ>(
+pub fn start_full_node<Block, Client, Backend, RCInterface>(
 	StartFullNodeParams {
 		client,
 		announce_block,
@@ -162,7 +154,7 @@ pub fn start_full_node<Block, Client, Backend, RCInterface, IQ>(
 		para_id,
 		relay_chain_slot_duration,
 		import_queue,
-	}: StartFullNodeParams<Block, Client, RCInterface, IQ>,
+	}: StartFullNodeParams<Block, Client, RCInterface>,
 ) -> sc_service::error::Result<()>
 where
 	Block: BlockT,
@@ -176,7 +168,6 @@ where
 	for<'a> &'a Client: BlockImport<Block>,
 	Backend: BackendT<Block> + 'static,
 	RCInterface: RelayChainInterface + Clone + 'static,
-	IQ: ImportQueue<Block> + 'static,
 {
 	let consensus = cumulus_client_consensus_common::run_parachain_consensus(
 		para_id,
@@ -226,36 +217,3 @@ pub fn prepare_node_config(mut parachain_config: Configuration) -> Configuration
 
 	parachain_config
 }
-
-/// A shared import queue
-///
-/// This is basically a hack until the Substrate side is implemented properly.
-#[derive(Clone)]
-pub struct SharedImportQueue<Block: BlockT>(Arc<parking_lot::Mutex<dyn ImportQueue<Block>>>);
-
-impl<Block: BlockT> SharedImportQueue<Block> {
-	/// Create a new instance of the shared import queue.
-	pub fn new<IQ: ImportQueue<Block> + 'static>(import_queue: IQ) -> Self {
-		Self(Arc::new(parking_lot::Mutex::new(import_queue)))
-	}
-}
-
-impl<Block: BlockT> ImportQueue<Block> for SharedImportQueue<Block> {
-	fn import_blocks(&mut self, origin: BlockOrigin, blocks: Vec<IncomingBlock<Block>>) {
-		self.0.lock().import_blocks(origin, blocks)
-	}
-
-	fn import_justifications(
-		&mut self,
-		who: RuntimeOrigin,
-		hash: Block::Hash,
-		number: NumberFor<Block>,
-		justifications: Justifications,
-	) {
-		self.0.lock().import_justifications(who, hash, number, justifications)
-	}
-
-	fn poll_actions(&mut self, cx: &mut std::task::Context, link: &mut dyn Link<Block>) {
-		self.0.lock().poll_actions(cx, link)
-	}
-}

parachain-template/node/src/service.rs

@@ -22,6 +22,7 @@ use cumulus_relay_chain_interface::{RelayChainError, RelayChainInterface, RelayC
 use cumulus_relay_chain_minimal_node::build_minimal_relay_chain_node;
 
 // Substrate Imports
+use sc_consensus::ImportQueue;
 use sc_executor::NativeElseWasmExecutor;
 use sc_network::NetworkService;
 use sc_network_common::service::NetworkBlock;
@@ -196,14 +197,15 @@ async fn start_node_impl(
 	let validator = parachain_config.role.is_authority();
 	let prometheus_registry = parachain_config.prometheus_registry().cloned();
 	let transaction_pool = params.transaction_pool.clone();
-	let import_queue = cumulus_client_service::SharedImportQueue::new(params.import_queue);
+	let import_queue_service = params.import_queue.service();
+
 	let (network, system_rpc_tx, tx_handler_controller, start_network) =
 		sc_service::build_network(sc_service::BuildNetworkParams {
 			config: &parachain_config,
 			client: client.clone(),
 			transaction_pool: transaction_pool.clone(),
 			spawn_handle: task_manager.spawn_handle(),
-			import_queue: import_queue.clone(),
+			import_queue: params.import_queue,
 			block_announce_validator_builder: Some(Box::new(|_| {
 				Box::new(block_announce_validator)
 			})),
@@ -293,7 +295,7 @@ async fn start_node_impl(
 			relay_chain_interface,
 			spawner,
 			parachain_consensus,
-			import_queue,
+			import_queue: import_queue_service,
 			collator_key: collator_key.expect("Command line arguments do not allow this. qed"),
 			relay_chain_slot_duration,
 		};
@@ -307,7 +309,7 @@ async fn start_node_impl(
 			para_id: id,
 			relay_chain_interface,
 			relay_chain_slot_duration,
-			import_queue,
+			import_queue: import_queue_service,
 		};
 
 		start_full_node(params)?;