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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/hrmp.rs
+11 -25
View File
@@ -229,10 +229,6 @@ pub trait Config: frame_system::Config + configuration::Config + paras::Config +
decl_storage! {
trait Store for Module<T: Config> as Hrmp {
/// Paras that are to be cleaned up at the end of the session.
/// The entries are sorted ascending by the para id.
OutgoingParas: Vec<ParaId>;
/// The set of pending HRMP open channel requests.
///
/// The set is accompanied by a list for iteration.
@@ -404,42 +400,33 @@ impl<T: Config> Module<T> {
/// Called by the initializer to note that a new session has started.
pub(crate) fn initializer_on_new_session(
notification: &initializer::SessionChangeNotification<T::BlockNumber>,
outgoing_paras: &[ParaId],
) {
Self::perform_outgoing_para_cleanup();
Self::perform_outgoing_para_cleanup(outgoing_paras);
Self::process_hrmp_open_channel_requests(&notification.prev_config);
Self::process_hrmp_close_channel_requests();
}
/// Iterate over all paras that were registered for offboarding and remove all the data
/// Iterate over all paras that were noted for offboarding and remove all the data
/// associated with them.
fn perform_outgoing_para_cleanup() {
let outgoing = OutgoingParas::take();
fn perform_outgoing_para_cleanup(outgoing: &[ParaId]) {
for outgoing_para in outgoing {
Self::clean_hrmp_after_outgoing(outgoing_para);
}
}
/// Schedule a para to be cleaned up at the start of the next session.
pub(crate) fn schedule_para_cleanup(id: ParaId) {
OutgoingParas::mutate(|v| {
if let Err(i) = v.binary_search(&id) {
v.insert(i, id);
}
});
}
/// Remove all storage entries associated with the given para.
fn clean_hrmp_after_outgoing(outgoing_para: ParaId) {
<Self as Store>::HrmpOpenChannelRequestCount::remove(&outgoing_para);
<Self as Store>::HrmpAcceptedChannelRequestCount::remove(&outgoing_para);
fn clean_hrmp_after_outgoing(outgoing_para: &ParaId) {
<Self as Store>::HrmpOpenChannelRequestCount::remove(outgoing_para);
<Self as Store>::HrmpAcceptedChannelRequestCount::remove(outgoing_para);
let ingress = <Self as Store>::HrmpIngressChannelsIndex::take(&outgoing_para)
let ingress = <Self as Store>::HrmpIngressChannelsIndex::take(outgoing_para)
.into_iter()
.map(|sender| HrmpChannelId {
sender,
recipient: outgoing_para.clone(),
});
let egress = <Self as Store>::HrmpEgressChannelsIndex::take(&outgoing_para)
let egress = <Self as Store>::HrmpEgressChannelsIndex::take(outgoing_para)
.into_iter()
.map(|recipient| HrmpChannelId {
sender: outgoing_para.clone(),
@@ -1149,8 +1136,8 @@ mod tests {
};
// NOTE: this is in initialization order.
Paras::initializer_on_new_session(&notification);
Hrmp::initializer_on_new_session(&notification);
let outgoing_paras = Paras::initializer_on_new_session(&notification);
Hrmp::initializer_on_new_session(&notification, &outgoing_paras);
}
System::on_finalize(b);
@@ -1247,7 +1234,6 @@ mod tests {
fn deregister_parachain(id: ParaId) {
Paras::schedule_para_cleanup(id);
Hrmp::schedule_para_cleanup(id);
}
fn channel_exists(sender: ParaId, recipient: ParaId) -> bool {