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Relative slots (#2820)

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* Initial work on relative slots for BABE

* More work

* Update core/consensus/babe/src/lib.rs

`Aura` → `Babe`

Co-Authored-By: Pierre Krieger <pierre.krieger1708@gmail.com>

* More work on relative slots

* Add missing field in test-runtime

* Bump `impl_version` and `authoring_version`

* Fix compile errors and warnings

* Upgrade dependencies

* Update dependencies more

* Revert some updates to dependencies

Somehow, those broke the build

* Fix compilation errors

* `Duration` → `u128` in calculations

* `slot_duration` is in milleseconds, not seconds

* Median algorithm: ignore blocks with slot_num < sl

* Fix silly compile error

* Store a duration, rather than an instant

It is more useful

* Fix compilation errors

* `INVERSE_NANO` → `NANOS_PER_SEC`

Also: `1000_000_000` → `1_000_000_000`

Suggested-by: Niklas Adolfsson <niklasadolfsson1@gmail.com>

* Un-bump `authoring_version`

* Disable median algorithm when `median_required_blocks` is 0

Otherwise it would panic.

* Apply suggestions from code review

Co-Authored-By: Bastian Köcher <bkchr@users.noreply.github.com>

* Simplify panic

* Fix build error

* Create `SignedDuration` struct

for signed `Duration` values.

Suggested-by: Bastian Köcher

* Refactor median algorithm into separate function

* Add issues for FIXMEs and respond to code review

* Fix minor warnings
This commit is contained in:
DemiMarie-parity
2019-06-22 12:21:29 -04:00
committed by GitHub
parent 437a6bc6b1
commit 48aa32bece
8 changed files with 167 additions and 35 deletions
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substrate/core/consensus/aura/src/lib.rs
+4 -3
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@@ -63,7 +63,8 @@ use srml_aura::{
};
use substrate_telemetry::{telemetry, CONSENSUS_TRACE, CONSENSUS_DEBUG, CONSENSUS_WARN, CONSENSUS_INFO};
use slots::{CheckedHeader, SlotData, SlotWorker, SlotInfo, SlotCompatible, slot_now, check_equivocation};
use slots::{CheckedHeader, SlotData, SlotWorker, SlotInfo, SlotCompatible};
use slots::{SignedDuration, check_equivocation};
pub use aura_primitives::*;
pub use consensus_common::SyncOracle;
@@ -283,8 +284,8 @@ impl<H, B, C, E, I, P, Error, SO> SlotWorker<B> for AuraWorker<C, E, I, P, SO> w
Box::new(proposal_work.map(move |b| {
// minor hack since we don't have access to the timestamp
// that is actually set by the proposer.
let slot_after_building = slot_now(slot_duration);
if slot_after_building != Some(slot_num) {
let slot_after_building = SignedDuration::default().slot_now(slot_duration);
if slot_after_building != slot_num {
info!(
"Discarding proposal for slot {}; block production took too long",
slot_num