Struct NodeStateMachine 

pub struct NodeStateMachine { /* private fields */ }

Manages state transitions for a replication node.

encapsulates the current replicator state, validates transitions, and tracks timing.

All methods are thread-safe. The state machine enforces that only valid transitions are permitted according to the replication protocol.

Implementations

impl NodeStateMachine

pub fn new() -> Self

Create a new state machine starting in the Detached state.

pub fn get_state(&self) -> NodeState

Get the current state.

pub fn get_state_change_time(&self) -> Instant

Get the time at which the last state change occurred.

pub fn get_transition_count(&self) -> u64

Get the total number of state transitions.

pub fn transition_to(&self, new_state: NodeState) -> Result<NodeState>

Transition to a new state, validating the transition is legal.

Returns the previous state on success.

Errors

Returns RepError::InvalidStateTransition if the transition from the current state to the new state is not permitted.

pub fn can_transition_to(&self, new_state: NodeState) -> bool

Check if a transition to the given state is valid from the current state.

pub fn time_in_state(&self) -> Duration

Get the time spent in the current state.

Trait Implementations

impl Default for NodeStateMachine

fn default() -> Self

Returns the “default value” for a type.