Struct CheckpointManager 

pub struct CheckpointManager {
    pub base_dir: String,
    pub keep_last_n: usize,
    pub entries: Vec<CheckpointEntry>,
    pub next_index: usize,
}

Versioned checkpoint manager.

Fields

base_dir: String

Base directory for checkpoints.

keep_last_n: usize

Maximum number of checkpoints to keep.

entries: Vec<CheckpointEntry>

List of checkpoint entries (oldest first).

next_index: usize

Next checkpoint index.

Implementations

impl CheckpointManager

pub fn new(base_dir: &str, keep_last_n: usize) -> Self

Create a new checkpoint manager.

pub fn register(&mut self, step: u64, timestamp: f64) -> String

Register a new checkpoint.

pub fn latest(&self) -> Option<&CheckpointEntry>

Get the latest checkpoint.

pub fn restore_by_index(&self, index: usize) -> Option<&CheckpointEntry>

Restore by index (returns path if found).

pub fn n_checkpoints(&self) -> usize

Number of stored checkpoints.

Trait Implementations

impl Clone for CheckpointManager

fn clone(&self) -> CheckpointManager

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CheckpointManager

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

Formats the value using the given formatter.