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Xcm in Rialto<>Millau bridge (#1379)

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* add XCM pallet to Millau runtime

* some progress

* messages are delivered (no fee)

* temp

* flush

* flush

* some progress

* progress

* Trap(42) is dispatched successfully

* fix spelling

* no more manual sending

* parametrize weight credit for tests

* actually charge fees

* enable send-using-messages-pallet to keep our test deployments alive + send valid XCM sometimes

* fix benchmarks build

* fix tests
This commit is contained in:
Svyatoslav Nikolsky
2022-05-16 11:46:55 +03:00
committed by Bastian Köcher
parent f54bd6c779
commit 748c265c47
19 changed files with 1059 additions and 431 deletions
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bridges/bin/runtime-common/src/messages_api.rs
+39 -4
View File
@@ -16,13 +16,15 @@
//! Helpers for implementing various message-related runtime API mthods.
use crate::messages::MessageBridge;
use crate::messages::{target::FromBridgedChainMessagePayload, MessageBridge};
use bp_messages::{LaneId, MessageDetails, MessageNonce};
use bp_messages::{LaneId, MessageDetails, MessageKey, MessageNonce};
use codec::Decode;
use frame_support::weights::Weight;
use sp_std::vec::Vec;
/// Implementation of the `To*OutboundLaneApi::message_details`.
pub fn outbound_message_details<Runtime, MessagesPalletInstance, BridgeConfig>(
pub fn outbound_message_details<Runtime, MessagesPalletInstance, BridgeConfig, XcmWeigher>(
lane: LaneId,
begin: MessageNonce,
end: MessageNonce,
@@ -31,6 +33,7 @@ where
Runtime: pallet_bridge_messages::Config<MessagesPalletInstance>,
MessagesPalletInstance: 'static,
BridgeConfig: MessageBridge,
XcmWeigher: xcm_executor::traits::WeightBounds<()>,
{
(begin..=end)
.filter_map(|nonce| {
@@ -38,7 +41,12 @@ where
pallet_bridge_messages::Pallet::<Runtime, MessagesPalletInstance>::outbound_message_data(lane, nonce)?;
Some(MessageDetails {
nonce,
dispatch_weight: 0,
// this shall match the similar code in the `FromBridgedChainMessageDispatch` - if we have failed
// to decode or estimate dispatch weight, we'll just return 0 to disable actual execution
dispatch_weight: compute_message_weight::<XcmWeigher>(
MessageKey { lane_id: lane, nonce },
&message_data.payload,
).unwrap_or(0),
size: message_data.payload.len() as _,
delivery_and_dispatch_fee: message_data.fee,
dispatch_fee_payment: bp_runtime::messages::DispatchFeePayment::AtTargetChain,
@@ -46,3 +54,30 @@ where
})
.collect()
}
// at the source chain we don't know the type of target chain `Call` => `()` is used (it is
// similarly currently used in Polkadot codebase)
fn compute_message_weight<XcmWeigher: xcm_executor::traits::WeightBounds<()>>(
message_key: MessageKey,
encoded_payload: &[u8],
) -> Result<Weight, ()> {
let mut payload = FromBridgedChainMessagePayload::<()>::decode(&mut &encoded_payload[..])
.map_err(|e| {
log::debug!(
target: "runtime::bridge-dispatch",
"Failed to decode outbound XCM message {:?}: {:?}",
message_key,
e,
);
})?;
let weight = XcmWeigher::weight(&mut payload.xcm.1);
let weight = weight.map_err(|e| {
log::debug!(
target: "runtime::bridge-dispatch",
"Failed to compute dispatch weight of outbound XCM message {:?}: {:?}",
message_key,
e,
);
})?;
Ok(weight)
}