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Select header that will be fully refunded in on-demand batch finality relay (#2729)

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* select header that will be fully refunded for submission in on-demand **batch** finality relay

* added the only possible test

* spelling

* nl

* updated comment
This commit is contained in:
Svyatoslav Nikolsky
2023-12-06 15:16:02 +03:00
committed by Bastian Köcher
parent 6d35de23be
commit 6c31cdbe19
15 changed files with 222 additions and 115 deletions
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bridges/modules/grandpa/src/call_ext.rs
+16 -13
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@@ -15,7 +15,10 @@
// along with Parity Bridges Common. If not, see <http://www.gnu.org/licenses/>.
use crate::{weights::WeightInfo, BridgedBlockNumber, BridgedHeader, Config, Error, Pallet};
use bp_header_chain::{justification::GrandpaJustification, ChainWithGrandpa};
use bp_header_chain::{
justification::GrandpaJustification, max_expected_submit_finality_proof_arguments_size,
ChainWithGrandpa, GrandpaConsensusLogReader,
};
use bp_runtime::{BlockNumberOf, OwnedBridgeModule};
use codec::Encode;
use frame_support::{dispatch::CallableCallFor, traits::IsSubType, weights::Weight};
@@ -169,28 +172,28 @@ pub(crate) fn submit_finality_proof_info_from_args<T: Config<I>, I: 'static>(
Weight::zero()
};
// check if the `finality_target` is a mandatory header. If so, we are ready to refund larger
// size
let is_mandatory_finality_target =
GrandpaConsensusLogReader::<BridgedBlockNumber<T, I>>::find_scheduled_change(
finality_target.digest(),
)
.is_some();
// we can estimate extra call size easily, without any additional significant overhead
let actual_call_size: u32 = finality_target
.encoded_size()
.saturating_add(justification.encoded_size())
.saturated_into();
let max_expected_call_size = max_expected_call_size::<T, I>(required_precommits);
let max_expected_call_size = max_expected_submit_finality_proof_arguments_size::<T::BridgedChain>(
is_mandatory_finality_target,
required_precommits,
);
let extra_size = actual_call_size.saturating_sub(max_expected_call_size);
SubmitFinalityProofInfo { block_number, extra_weight, extra_size }
}
/// Returns maximal expected size of `submit_finality_proof` call arguments.
fn max_expected_call_size<T: Config<I>, I: 'static>(required_precommits: u32) -> u32 {
let max_expected_justification_size =
GrandpaJustification::<BridgedHeader<T, I>>::max_reasonable_size::<T::BridgedChain>(
required_precommits,
);
// call arguments are header and justification
T::BridgedChain::MAX_HEADER_SIZE.saturating_add(max_expected_justification_size)
}
#[cfg(test)]
mod tests {
use crate::{
bridges/modules/grandpa/src/mock.rs
+2 -3
View File
@@ -86,9 +86,8 @@ impl ChainWithGrandpa for TestBridgedChain {
const WITH_CHAIN_GRANDPA_PALLET_NAME: &'static str = "";
const MAX_AUTHORITIES_COUNT: u32 = MAX_BRIDGED_AUTHORITIES;
const REASONABLE_HEADERS_IN_JUSTIFICATON_ANCESTRY: u32 = 8;
const MAX_HEADER_SIZE: u32 = 256;
const AVERAGE_HEADER_SIZE_IN_JUSTIFICATION: u32 = 64;
const WORST_HEADER_SIZE_IN_JUSTIFICATION: u32 = 64;
const MAX_MANDATORY_HEADER_SIZE: u32 = 256;
const AVERAGE_HEADER_SIZE: u32 = 64;
}
/// Return test externalities to use in tests.