Struct CheckpointStore 

pub struct CheckpointStore<S: Clone> { /* private fields */ }

Keeps the single most recent Checkpoint for S, auto-incrementing the version on every CheckpointStore::save. Suited for a “last confirmed state” rewind point on a long-running engine.

Implementations

impl<S: Clone> CheckpointStore<S>

pub fn new() -> Self

pub fn save(&mut self, state: &S, timestamp: i64) -> u32

Captures state as the new latest checkpoint, replacing any prior one.

pub fn latest(&self) -> Option<&Checkpoint<S>>

pub fn restore_into(&self, target: &mut S) -> bool

Restores target from the latest checkpoint, if one exists.

Trait Implementations

impl<S: Clone + Clone> Clone for CheckpointStore<S>

fn clone(&self) -> CheckpointStore<S>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<S: Debug + Clone> Debug for CheckpointStore<S>

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

Formats the value using the given formatter.

impl<S: Default + Clone> Default for CheckpointStore<S>

fn default() -> CheckpointStore<S>

Returns the “default value” for a type.