Enum Role 

pub enum Role {
    Follower,
    Candidate,
    Leader,
}

The role a node currently plays in the consensus protocol.

A node is always in exactly one role. It starts as a Follower, may become a Candidate when it stops hearing from a leader, and becomes a Leader if it wins an election.

Examples

use raft_io::{RaftConfig, RaftNode, Role};

let node = RaftNode::new(RaftConfig::single(1));
assert_eq!(node.role(), Role::Follower);

Variants

Follower

Passive replica: serves the leader and votes in elections.

Candidate

Standing for election in the current term, collecting votes.

Leader

Won the election for the current term; drives replication.

Trait Implementations

impl Clone for Role

fn clone(&self) -> Role

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Role

impl Debug for Role

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

Formats the value using the given formatter.

impl Eq for Role

impl Hash for Role

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for Role

fn eq(&self, other: &Role) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for Role