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Complex RialtoParachain <> Millau relay (#1405)

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* complex parachain relay

* fix spelling
This commit is contained in:
Svyatoslav Nikolsky
2022-05-25 10:54:20 +03:00
committed by Bastian Köcher
parent 5f2f61ced5
commit 542ebb5654
27 changed files with 1639 additions and 313 deletions
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bridges/relays/lib-substrate-relay/src/messages_source.rs
+41 -14
View File
@@ -23,10 +23,11 @@ use crate::{
MessageLaneAdapter, ReceiveMessagesDeliveryProofCallBuilder, SubstrateMessageLane,
},
messages_target::SubstrateMessagesDeliveryProof,
on_demand_headers::OnDemandHeadersRelay,
on_demand::OnDemandRelay,
TransactionParams,
};
use async_std::sync::Arc;
use async_trait::async_trait;
use bp_messages::{
storage_keys::{operating_mode_key, outbound_lane_data_key},
@@ -66,7 +67,7 @@ pub struct SubstrateMessagesSource<P: SubstrateMessageLane> {
target_client: Client<P::TargetChain>,
lane_id: LaneId,
transaction_params: TransactionParams<AccountKeyPairOf<P::SourceTransactionSignScheme>>,
target_to_source_headers_relay: Option<OnDemandHeadersRelay<P::TargetChain>>,
target_to_source_headers_relay: Option<Arc<dyn OnDemandRelay<BlockNumberOf<P::TargetChain>>>>,
}
impl<P: SubstrateMessageLane> SubstrateMessagesSource<P> {
@@ -76,7 +77,9 @@ impl<P: SubstrateMessageLane> SubstrateMessagesSource<P> {
target_client: Client<P::TargetChain>,
lane_id: LaneId,
transaction_params: TransactionParams<AccountKeyPairOf<P::SourceTransactionSignScheme>>,
target_to_source_headers_relay: Option<OnDemandHeadersRelay<P::TargetChain>>,
target_to_source_headers_relay: Option<
Arc<dyn OnDemandRelay<BlockNumberOf<P::TargetChain>>>,
>,
) -> Self {
SubstrateMessagesSource {
source_client,
@@ -282,7 +285,7 @@ where
async fn require_target_header_on_source(&self, id: TargetHeaderIdOf<MessageLaneAdapter<P>>) {
if let Some(ref target_to_source_headers_relay) = self.target_to_source_headers_relay {
target_to_source_headers_relay.require_finalized_header(id).await;
target_to_source_headers_relay.require_more_headers(id.0).await;
}
}
@@ -424,18 +427,13 @@ where
let self_best_id = HeaderId(*self_best_header.number(), self_best_hash);
// now let's read id of best finalized peer header at our best finalized block
let encoded_best_finalized_peer_on_self = self_client
.state_call(
best_finalized_header_id_method_name.into(),
Bytes(Vec::new()),
Some(self_best_hash),
let peer_on_self_best_finalized_id =
best_finalized_peer_header_at_self::<SelfChain, PeerChain>(
self_client,
self_best_hash,
best_finalized_header_id_method_name,
)
.await?;
let decoded_best_finalized_peer_on_self: (BlockNumberOf<PeerChain>, HashOf<PeerChain>) =
Decode::decode(&mut &encoded_best_finalized_peer_on_self.0[..])
.map_err(SubstrateError::ResponseParseFailed)?;
let peer_on_self_best_finalized_id =
HeaderId(decoded_best_finalized_peer_on_self.0, decoded_best_finalized_peer_on_self.1);
// read actual header, matching the `peer_on_self_best_finalized_id` from the peer chain
let actual_peer_on_self_best_finalized_id = match peer_client {
@@ -455,6 +453,35 @@ where
})
}
/// Reads best `PeerChain` header known to the `SelfChain` using provided runtime API method.
///
/// Method is supposed to be the `<PeerChain>FinalityApi::best_finalized()` method.
pub async fn best_finalized_peer_header_at_self<SelfChain, PeerChain>(
self_client: &Client<SelfChain>,
at_self_hash: HashOf<SelfChain>,
best_finalized_header_id_method_name: &str,
) -> Result<HeaderIdOf<PeerChain>, SubstrateError>
where
SelfChain: Chain,
PeerChain: Chain,
{
// now let's read id of best finalized peer header at our best finalized block
let encoded_best_finalized_peer_on_self = self_client
.state_call(
best_finalized_header_id_method_name.into(),
Bytes(Vec::new()),
Some(at_self_hash),
)
.await?;
let decoded_best_finalized_peer_on_self: (BlockNumberOf<PeerChain>, HashOf<PeerChain>) =
Decode::decode(&mut &encoded_best_finalized_peer_on_self.0[..])
.map_err(SubstrateError::ResponseParseFailed)?;
let peer_on_self_best_finalized_id =
HeaderId(decoded_best_finalized_peer_on_self.0, decoded_best_finalized_peer_on_self.1);
Ok(peer_on_self_best_finalized_id)
}
fn make_message_details_map<C: Chain>(
weights: Vec<bp_messages::MessageDetails<C::Balance>>,
nonces: RangeInclusive<MessageNonce>,