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Jon Häggblad
7cf78c166e
* babe: backoff authoring blocks when finality lags * babe: move backoff authoring params to default constructor * babe: deduplicate the test a bit * babe: set backoff constants in service * babe: use better names for backoff authoring block parameters * babe: remove last unwrap * babe: slight style tweak * babe: fix comment * slots: move backoff block authorship logic to SimpleSlotWorker * aura: append SlotInfo in on_slot * slots: use the correct types for parameters * slots: fix review comments * aura: add missing backoff authoring blocks parameters * slots: add comments for default values * slots: add additional checks in test * slots: update implementation for new master * slots: revert the change to SlotInfo * Fix review comments * slots: rework unit tests for backing off claiming slots * slots: add test for asymptotic behaviour for slot claims * slots: address review comments * slots: add test for max_interval * slots: add assertion for intervals between between claimed slots * slots: remove rustfmt directive * slots: another attempt at explaining authoring_rate * slots: up unfinalized_slack to 50 by default * slots: add tests for time to reach max_interval * slots: fix typo in comments * Apply suggestions from code review Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com> * slots: additional tweaks to comments and info calls * slots: rename to BackoffAuthoringOnFinalizedHeadLagging * slots: make the backing off strategy generic * Apply suggestions from code review Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com> * slots: implement backoff trait for () for simplicity * slots: move logging inside backing off function to make it more specific * aura: add missing function parameter Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>
Aura (Authority-round) consensus in substrate.
Aura works by having a list of authorities A who are expected to roughly agree on the current time. Time is divided up into discrete slots of t seconds each. For each slot s, the author of that slot is A[s % |A|].
The author is allowed to issue one block but not more during that slot, and it will be built upon the longest valid chain that has been seen.
Blocks from future steps will be either deferred or rejected depending on how far in the future they are.
NOTE: Aura itself is designed to be generic over the crypto used.
License: GPL-3.0-or-later WITH Classpath-exception-2.0