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Initializer + Paras Clean Up Messages When Offboarding (#2413)

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* initial hack in

* finish up

* use notification to pass outgoing paras

* move outgoing paras from notifications

* missing comma

* update guides

* clean up
This commit is contained in:
Shawn Tabrizi
2021-02-15 13:48:25 -04:00
committed by GitHub
parent 22f85c809b
commit eb0159f288
10 changed files with 116 additions and 149 deletions
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polkadot/runtime/parachains/src/paras.rs
+13 -7
View File
@@ -317,21 +317,27 @@ impl<T: Config> Module<T> {
pub(crate) fn initializer_finalize() { }
/// Called by the initializer to note that a new session has started.
pub(crate) fn initializer_on_new_session(_notification: &SessionChangeNotification<T::BlockNumber>) {
///
/// Returns the list of outgoing parachains for this session.
pub(crate) fn initializer_on_new_session(_notification: &SessionChangeNotification<T::BlockNumber>)
-> Vec<ParaId>
{
let now = <frame_system::Module<T>>::block_number();
let mut parachains = Self::clean_up_outgoing(now);
let (mut parachains, outgoing) = Self::clean_up_outgoing(now);
Self::apply_incoming(&mut parachains);
Self::apply_upgrades(&mut parachains);
Self::apply_downgrades(&mut parachains);
<Self as Store>::Parachains::set(parachains);
outgoing
}
/// Cleans up all outgoing paras. Returns the new set of parachains
fn clean_up_outgoing(now: T::BlockNumber) -> Vec<ParaId> {
/// Cleans up all outgoing paras. Returns the new set of parachains and any outgoing parachains.
fn clean_up_outgoing(now: T::BlockNumber) -> (Vec<ParaId>, Vec<ParaId>) {
let mut parachains = <Self as Store>::Parachains::get();
let outgoing = <Self as Store>::OutgoingParas::take();
for outgoing_para in outgoing {
for outgoing_para in &outgoing {
// Warn if there is a state error... but still perform the offboarding to be defensive.
if let Some(state) = ParaLifecycles::get(&outgoing_para) {
if !state.is_outgoing() {
@@ -353,11 +359,11 @@ impl<T: Config> Module<T> {
let removed_code = <Self as Store>::CurrentCode::take(&outgoing_para);
if let Some(removed_code) = removed_code {
Self::note_past_code(outgoing_para, now, now, removed_code);
Self::note_past_code(*outgoing_para, now, now, removed_code);
}
}
parachains
(parachains, outgoing)
}
/// Applies all incoming paras, updating the parachains list for those that are parachains.