Struct FileBackend 

pub struct FileBackend { /* private fields */ }

File-backed persistence. Each device slice is stored as a JSON file at {base_dir}/{store_id}/{device_id}.json.

Writes are atomic (write to .tmp, then rename) so a crash mid-write never corrupts the persisted data.

Implementations

impl FileBackend

pub fn new(base_dir: impl Into<PathBuf>) -> Self

Create a new FileBackend rooted at base_dir.

Trait Implementations

impl StoreBackend for FileBackend

fn load(&self, store_id: &str, device_id: &str) -> Option<(Vec<u8>, u64)>

Load a device’s slice. Returns (serialized_data, version) or None.

fn save(&self, store_id: &str, device_id: &str, data: &[u8], version: u64)

Save a device’s slice.

fn remove(&self, store_id: &str, device_id: &str)

Remove a device’s slice.