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Deprecate para_id() from CoreState in polkadot primitives (#3979)

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With Coretime enabled we can no longer assume there is a static 1:1
mapping between core index and para id. This mapping should be obtained
from the scheduler/claimqueue on block by block basis.

This PR modifies `para_id()` (from `CoreState`) to return the scheduled
`ParaId` for occupied cores and removes its usages in the code.

Closes https://github.com/paritytech/polkadot-sdk/issues/3948

---------

Co-authored-by: Andrei Sandu <54316454+sandreim@users.noreply.github.com>
This commit is contained in:
Tsvetomir Dimitrov
2024-04-08 08:58:12 +03:00
committed by GitHub
parent bd4471b4fc
commit 59f868d1e9
6 changed files with 108 additions and 43 deletions
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polkadot/primitives/src/v7/mod.rs
+8 -2
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@@ -1086,10 +1086,16 @@ pub enum CoreState<H = Hash, N = BlockNumber> {
}
impl<N> CoreState<N> {
/// If this core state has a `para_id`, return it.
/// Returns the scheduled `ParaId` for the core or `None` if nothing is scheduled.
///
/// This function is deprecated. `ClaimQueue` should be used to obtain the scheduled `ParaId`s
/// for each core.
#[deprecated(
note = "`para_id` will be removed. Use `ClaimQueue` to query the scheduled `para_id` instead."
)]
pub fn para_id(&self) -> Option<Id> {
match self {
Self::Occupied(ref core) => Some(core.para_id()),
Self::Occupied(ref core) => core.next_up_on_available.as_ref().map(|n| n.para_id),
Self::Scheduled(core) => Some(core.para_id),
Self::Free => None,
}