Struct WinSnapshotStore 

pub struct WinSnapshotStore {
    path: PathBuf,
}

Production store: thin wrapper over VolumeIndex::{load_from, save_to} plus fs::{metadata, remove_file} on the volume’s snapshot path.

Fields

path: PathBuf

Implementations

impl WinSnapshotStore

pub(crate) const fn new(path: PathBuf) -> Self

Trait Implementations

impl SnapshotStore for WinSnapshotStore

fn load(&self) -> Result<(VolumeIndex, u64, i64)>

Load the persisted snapshot: the rebuilt index plus the journal checkpoint (journal_id, next_usn) it was saved with. ErrorKind::NotFound means “first run” (not a failure); any other error means a corrupt/unreadable file — the caller counts it in snapshot_load_failures and falls back to a full scan.

fn file_bytes(&self) -> u64

Size of the persisted snapshot in bytes (observability only — the restore ScanTrace). Best effort; 0 when unknown.

fn save_atomic( &self, idx: &VolumeIndex, journal_id: u64, next_usn: i64, ) -> Result<()>

Persist the index with its checkpoint atomically (tmp + rename): a torn write must never become a loadable snapshot.

fn remove(&self)

Best-effort removal (journal-gone: a snapshot pinned to the dead journal id must not be restored on the next start). Failures are intentionally ignored — checkpoint validation on load rejects a stale file anyway.