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scheduler: handle re-scheduling around finalization correctly (#2257)

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* scheduler: handle re-scheduling around finalization correctly

* also make sure parathreads get cleaned

* run scheduling in finalization

* Remove stray println!

* Update the schedule call site in inclusion inherent

* Clarify subtlety around SessionStartBlock

* Remove double semi-colon

* reschedule prior to `availability_cores` and in on-initialize

* improve docs

* fix line

* more doc reformat

* remove unneeded call

* avoid unnecessary scheduling on initialize

* split `clear` and `schedule

* Update runtime/parachains/src/scheduler.rs

Co-authored-by: Sergei Shulepov <sergei@parity.io>

Co-authored-by: Sergei Shulepov <sergei@parity.io>
This commit is contained in:
Robert Habermeier
2021-01-13 17:07:09 -05:00
committed by GitHub
parent 1d28f59e19
commit 3465c18b71
8 changed files with 269 additions and 62 deletions
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polkadot/runtime/parachains/src/runtime_api_impl/v1.rs
+9 -2
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@@ -19,6 +19,7 @@
use sp_std::prelude::*;
use sp_std::collections::btree_map::BTreeMap;
use sp_runtime::traits::One;
use primitives::v1::{
ValidatorId, ValidatorIndex, GroupRotationInfo, CoreState, ValidationData,
Id as ParaId, OccupiedCoreAssumption, SessionIndex, ValidationCode,
@@ -39,8 +40,10 @@ pub fn validator_groups<T: initializer::Config>() -> (
Vec<Vec<ValidatorIndex>>,
GroupRotationInfo<T::BlockNumber>,
) {
let now = <frame_system::Module<T>>::block_number() + One::one();
let groups = <scheduler::Module<T>>::validator_groups();
let rotation_info = <scheduler::Module<T>>::group_rotation_info();
let rotation_info = <scheduler::Module<T>>::group_rotation_info(now);
(groups, rotation_info)
}
@@ -51,7 +54,11 @@ pub fn availability_cores<T: initializer::Config>() -> Vec<CoreState<T::Hash, T:
let parachains = <paras::Module<T>>::parachains();
let config = <configuration::Module<T>>::config();
let rotation_info = <scheduler::Module<T>>::group_rotation_info();
let now = <frame_system::Module<T>>::block_number() + One::one();
<scheduler::Module<T>>::clear();
<scheduler::Module<T>>::schedule(Vec::new(), now);
let rotation_info = <scheduler::Module<T>>::group_rotation_info(now);
let time_out_at = |backed_in_number, availability_period| {
let time_out_at = backed_in_number + availability_period;