Struct RoundRobin 

pub struct RoundRobin<H: Hasher = Sha256> { /* private fields */ }

Configuration for round-robin leader election.

Rotates through participants based on (epoch + term) % num_participants, where term is the stable-leader term containing the view. The rotation order can be shuffled at construction using a seed.

Works with any signing scheme.

Implementations

impl<H: Hasher> RoundRobin<H>

pub fn shuffled(seed: &[u8]) -> Self

Creates a round-robin config that will shuffle the rotation order based on seed.

The seed is used during Config::build to deterministically shuffle the permutation.

pub const fn with_term( self, term_length: TermLength, stall_timeout: Duration, optimistic_views: ViewDelta, ) -> Self

Enables stable leaders: term_length consecutive views share a leader, a term abandoned after stall_timeout evicts them, and participants may run up to optimistic_views ahead within a term (see Terms::stable).

The term length is consensus-critical: every participant must configure the same value (see TermLength). The timeout and lookahead are local policy.

Panics

Panics if term_length is 1 or stall_timeout is zero (see Terms::stable).

Trait Implementations

impl<H: Hasher> Clone for RoundRobin<H>

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<S: Scheme, H: Hasher> Config<S> for RoundRobin<H>

type Elector = RoundRobinElector<S>

The initialized elector type.

fn build(self, participants: &Set<S::PublicKey>) -> RoundRobinElector<S>

Builds the elector with the given participants.

impl<H: Debug + Hasher> Debug for RoundRobin<H>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<H: Default + Hasher> Default for RoundRobin<H>

fn default() -> RoundRobin<H>

Returns the “default value” for a type.