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babe: expose next epoch data (#7829)

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* babe: expose next epoch data

* babe: add runtime api for next_epoch

* babe: avoid reading next authorities from storage unnecessarily

* babe: add notes about epoch duration constraints

* babe: guard against overflow

* babe: add test for fetching current and next epoch data
This commit is contained in:
André Silva
2021-01-06 11:08:29 +00:00
committed by GitHub
parent 452244514a
commit dd4625a1e7
6 changed files with 88 additions and 4 deletions
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substrate/bin/node/runtime/src/lib.rs
+4
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@@ -1180,6 +1180,10 @@ impl_runtime_apis! {
Babe::current_epoch()
}
fn next_epoch() -> sp_consensus_babe::Epoch {
Babe::next_epoch()
}
fn generate_key_ownership_proof(
_slot_number: sp_consensus_babe::SlotNumber,
authority_id: sp_consensus_babe::AuthorityId,