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Offences Weight for OnInitialize (#5961)

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* Weight accounting for on_offence.

* Try to compute weight.

* Guesstimate upper bounds on db read/writes for slashing

* greater than or equal to

* add new trait

* Update mock.rs

* Add basic weight test

* one more test

* Update frame/staking/src/lib.rs

Co-authored-by: thiolliere <gui.thiolliere@gmail.com>

* Update frame/staking/src/lib.rs

Co-authored-by: Kian Paimani <5588131+kianenigma@users.noreply.github.com>

* Add test for offences queue

Co-authored-by: Tomasz Drwięga <tomasz@parity.io>
Co-authored-by: thiolliere <gui.thiolliere@gmail.com>
Co-authored-by: Kian Paimani <5588131+kianenigma@users.noreply.github.com>
This commit is contained in:
Shawn Tabrizi
2020-05-21 14:00:24 +02:00
committed by GitHub
parent 0ddd5cc278
commit ac049a97be
9 changed files with 219 additions and 38 deletions
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substrate/primitives/staking/src/offence.rs
+6 -4
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@@ -127,7 +127,7 @@ impl<Reporter, Offender, O: Offence<Offender>> ReportOffence<Reporter, Offender,
///
/// Used to decouple the module that handles offences and
/// the one that should punish for those offences.
pub trait OnOffenceHandler<Reporter, Offender> {
pub trait OnOffenceHandler<Reporter, Offender, Res> {
/// A handler for an offence of a particular kind.
///
/// Note that this contains a list of all previous offenders
@@ -148,7 +148,7 @@ pub trait OnOffenceHandler<Reporter, Offender> {
offenders: &[OffenceDetails<Reporter, Offender>],
slash_fraction: &[Perbill],
session: SessionIndex,
) -> Result<(), ()>;
) -> Result<Res, ()>;
/// Can an offence be reported now or not. This is an method to short-circuit a call into
/// `on_offence`. Ideally, a correct implementation should return `false` if `on_offence` will
@@ -157,12 +157,14 @@ pub trait OnOffenceHandler<Reporter, Offender> {
fn can_report() -> bool;
}
impl<Reporter, Offender> OnOffenceHandler<Reporter, Offender> for () {
impl<Reporter, Offender, Res: Default> OnOffenceHandler<Reporter, Offender, Res> for () {
fn on_offence(
_offenders: &[OffenceDetails<Reporter, Offender>],
_slash_fraction: &[Perbill],
_session: SessionIndex,
) -> Result<(), ()> { Ok(()) }
) -> Result<Res, ()> {
Ok(Default::default())
}
fn can_report() -> bool { true }
}