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Session Delayed Para Changes / Actions Queue (#2406)

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* initial implementation of lifecycles and upgrades

* clean up a bit

* fix doc comment

* more rigid lifecycle checks

* include paras which are transitioning, and lifecycle query

* format guide

* update api

* update guide

* explicit outgoing state, fix genesis

* handle outgoing with transitioning paras

* do not include transitioning paras in identifier

* Update roadmap/implementers-guide/src/runtime/paras.md

* Update roadmap/implementers-guide/src/runtime/paras.md

* Update roadmap/implementers-guide/src/runtime/paras.md

* Apply suggestions from code review

* Use matches macro

* Correct terms

* Apply suggestions from code review

* actions queue

* Revert "actions queue"

This reverts commit b2e9011ec8937d6c73e99292416c9692aeb30f73.

* collapse onboarding state

* starting actions queue

* consolidate actions queue

* schedule para initialize result

* more actions queue for upgrade/downgrade

* clean up with fully implemented actions queue

* fix tests

* fix scheduler tests

* fix hrmp tests

* fix test

* doc fixes

* fix hrmp test w/ valid para

* Update paras.md

* fix paras registrar

* Update propose_parachain.rs

* fix merge

* Introduce "shared" module

* fix rococo build

* fix up and use shared

* guide updates

* add shared config to common tests

* add shared to test-runtime

* remove println

* fix note

Co-authored-by: Gavin Wood <gavin@parity.io>
This commit is contained in:
Shawn Tabrizi
2021-02-18 23:20:18 -04:00
committed by GitHub
parent 006602eff2
commit a5defa7c7f
20 changed files with 654 additions and 698 deletions
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polkadot/runtime/parachains/src/initializer.rs
+15 -10
View File
@@ -21,14 +21,14 @@
use sp_std::prelude::*;
use frame_support::weights::Weight;
use primitives::v1::ValidatorId;
use primitives::v1::{ValidatorId, SessionIndex};
use frame_support::{
decl_storage, decl_module, decl_error, traits::{OneSessionHandler, Randomness},
};
use parity_scale_codec::{Encode, Decode};
use crate::{
configuration::{self, HostConfiguration},
paras, scheduler, inclusion, session_info, dmp, ump, hrmp,
shared, paras, scheduler, inclusion, session_info, dmp, ump, hrmp,
};
/// Information about a session change that has just occurred.
@@ -45,7 +45,7 @@ pub struct SessionChangeNotification<BlockNumber> {
/// A secure random seed for the session, gathered from BABE.
pub random_seed: [u8; 32],
/// New session index.
pub session_index: sp_staking::SessionIndex,
pub session_index: SessionIndex,
}
impl<BlockNumber: Default + From<u32>> Default for SessionChangeNotification<BlockNumber> {
@@ -65,12 +65,13 @@ impl<BlockNumber: Default + From<u32>> Default for SessionChangeNotification<Blo
struct BufferedSessionChange {
validators: Vec<ValidatorId>,
queued: Vec<ValidatorId>,
session_index: sp_staking::SessionIndex,
session_index: SessionIndex,
}
pub trait Config:
frame_system::Config
+ configuration::Config
+ shared::Config
+ paras::Config
+ scheduler::Config
+ inclusion::Config
@@ -126,6 +127,7 @@ decl_module! {
// - UMP
// - HRMP
let total_weight = configuration::Module::<T>::initializer_initialize(now) +
shared::Module::<T>::initializer_initialize(now) +
paras::Module::<T>::initializer_initialize(now) +
scheduler::Module::<T>::initializer_initialize(now) +
inclusion::Module::<T>::initializer_initialize(now) +
@@ -148,6 +150,7 @@ decl_module! {
inclusion::Module::<T>::initializer_finalize();
scheduler::Module::<T>::initializer_finalize();
paras::Module::<T>::initializer_finalize();
shared::Module::<T>::initializer_finalize();
configuration::Module::<T>::initializer_finalize();
// Apply buffered session changes as the last thing. This way the runtime APIs and the
@@ -170,7 +173,7 @@ decl_module! {
impl<T: Config> Module<T> {
fn apply_new_session(
session_index: sp_staking::SessionIndex,
session_index: SessionIndex,
validators: Vec<ValidatorId>,
queued: Vec<ValidatorId>,
) {
@@ -186,7 +189,7 @@ impl<T: Config> Module<T> {
// We can't pass the new config into the thing that determines the new config,
// so we don't pass the `SessionChangeNotification` into this module.
configuration::Module::<T>::initializer_on_new_session(&validators, &queued);
configuration::Module::<T>::initializer_on_new_session(&validators, &queued, &session_index);
let new_config = <configuration::Module<T>>::config();
@@ -199,6 +202,7 @@ impl<T: Config> Module<T> {
session_index,
};
shared::Module::<T>::initializer_on_new_session(&notification);
let outgoing_paras = paras::Module::<T>::initializer_on_new_session(&notification);
scheduler::Module::<T>::initializer_on_new_session(&notification);
inclusion::Module::<T>::initializer_on_new_session(&notification);
@@ -212,7 +216,7 @@ impl<T: Config> Module<T> {
/// at the end of the block. If `queued` is `None`, the `validators` are considered queued.
fn on_new_session<'a, I: 'a>(
_changed: bool,
session_index: sp_staking::SessionIndex,
session_index: SessionIndex,
validators: I,
queued: Option<I>,
)
@@ -361,10 +365,11 @@ mod tests {
assert_ok!(Dmp::queue_downward_message(&Configuration::config(), b, vec![4, 5, 6]));
assert_ok!(Dmp::queue_downward_message(&Configuration::config(), c, vec![7, 8, 9]));
Paras::schedule_para_cleanup(a);
Paras::schedule_para_cleanup(b);
assert_ok!(Paras::schedule_para_cleanup(a));
assert_ok!(Paras::schedule_para_cleanup(b));
Initializer::apply_new_session(1, vec![], vec![]);
// Apply session 2 in the future
Initializer::apply_new_session(2, vec![], vec![]);
assert!(Dmp::dmq_contents(a).is_empty());
assert!(Dmp::dmq_contents(b).is_empty());