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Introduce upgrade go-ahead and upgrade restriction signals (#3371)

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* Introduce upgrade goahead and upgrade restriction signals

* Explicit encoding indicies for exposed enums

* typo: abscent -> absent

* Prune cooldowns as well

* Please hunspell
This commit is contained in:
Sergei Shulepov
2021-08-03 19:28:37 +02:00
committed by GitHub
parent e9a6689e79
commit 72a8bba401
5 changed files with 368 additions and 32 deletions
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polkadot/roadmap/implementers-guide/src/runtime/inclusion.md
+2 -2
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@@ -45,7 +45,7 @@ PendingAvailabilityCommitments: map ParaId => CandidateCommitments;
All failed checks should lead to an unrecoverable error making the block invalid.
* `process_bitfields(expected_bits, Bitfields, core_lookup: Fn(CoreIndex) -> Option<ParaId>)`:
1. check that there is at most 1 bitfield per validator and that the number of bits in each bitfield is equal to expected_bits.
1. check that there is at most 1 bitfield per validator and that the number of bits in each bitfield is equal to `expected_bits`.
1. check that there are no duplicates
1. check all validator signatures.
1. apply each bit of bitfield to the corresponding pending candidate. looking up parathread cores using the `core_lookup`. Disregard bitfields that have a `1` bit for any free cores.
@@ -70,7 +70,7 @@ All failed checks should lead to an unrecoverable error making the block invalid
1. create a corresponding entry in the `PendingAvailabilityCommitments` with the commitments.
1. Return a `Vec<CoreIndex>` of all scheduled cores of the list of passed assignments that a candidate was successfully backed for, sorted ascending by CoreIndex.
* `enact_candidate(relay_parent_number: BlockNumber, CommittedCandidateReceipt)`:
1. If the receipt contains a code upgrade, Call `Paras::schedule_code_upgrade(para_id, code, relay_parent_number + config.validationl_upgrade_delay)`.
1. If the receipt contains a code upgrade, Call `Paras::schedule_code_upgrade(para_id, code, relay_parent_number, config)`.
> TODO: Note that this is safe as long as we never enact candidates where the relay parent is across a session boundary. In that case, which we should be careful to avoid with contextual execution, the configuration might have changed and the para may de-sync from the host's understanding of it.
1. Reward all backing validators of each candidate, contained within the `backers` field.
1. call `Ump::receive_upward_messages` for each backed candidate, using the [`UpwardMessage`s](../types/messages.md#upward-message) from the [`CandidateCommitments`](../types/candidate.md#candidate-commitments).