Struct SnapshotPersistence 

pub struct SnapshotPersistence { /* private fields */ }

Manages reading and writing AppStateSnapshot to disk.

Implementations

impl SnapshotPersistence

pub fn new() -> Self

Create a persistence manager using the default snapshot directory.

pub fn with_dir(dir: impl Into<PathBuf>) -> Self

Create a persistence manager using a custom directory (useful for tests).

pub fn snapshot_path(&self, session_id: &str) -> PathBuf

Return the path where a session’s snapshot would be stored.

pub fn save(&self, snapshot: &AppStateSnapshot) -> Result<(), String>

Save a snapshot to disk atomically (write tmp then rename).

pub fn load(&self, session_id: &str) -> Option<AppStateSnapshot>

Load a snapshot for a specific session.

pub fn find_incomplete_sessions(&self) -> Vec<AppStateSnapshot>

Find all incomplete (non-completed) session snapshots.

Returns snapshots where completed == false, sorted by timestamp (most recent first).

pub fn remove(&self, session_id: &str) -> bool

Remove the snapshot file for a session (e.g., after clean exit or recovery).

pub fn cleanup_old(&self, max_age: Duration) -> usize

Remove snapshots older than max_age.

Trait Implementations

impl Clone for SnapshotPersistence

fn clone(&self) -> SnapshotPersistence

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SnapshotPersistence

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

Formats the value using the given formatter.

impl Default for SnapshotPersistence

fn default() -> Self

Returns the “default value” for a type.