Module elector 

Leader election strategies for simplex consensus.

This module provides the Config and Elector traits for customizing how leaders are selected for each consensus round, along with built-in implementations.

Built-in Electors

• RoundRobin/RoundRobinElector: Deterministic rotation through participants based on view number. Optionally shuffled using a seed. Works with any signing scheme.

• Random/RandomElector: Uses randomness derived from BLS threshold VRF signatures for unpredictable leader selection. Falls back to round-robin for the first view (no certificate available). Requires super::scheme::bls12381_threshold::vrf (implements super::scheme::bls12381_threshold::vrf::Seedable).

Custom Electors

Applications can implement Config and Elector for custom leader selection logic such as stake-weighted selection or other application-specific strategies.

Usage

Users configure leader election with an elector Config (for example, RoundRobin) and pass it to the consensus configuration. Consensus builds the initialized Elector with the scheme participants before starting.

Structs

Random

Configuration for leader election using threshold signature randomness.

RandomElector

Initialized random leader elector using threshold signature randomness.

RoundRobin

Configuration for round-robin leader election.

RoundRobinElector

Initialized round-robin leader elector.

Terms

Leadership term structure reported by an Elector.

Enums

RandomVersion

Signature-to-leader mapping used by Random.

Traits

Config

Configuration for creating an Elector.

Elector

An initialized elector that can select leaders for consensus rounds.