Struct FileLeaseStore 

pub struct FileLeaseStore { /* private fields */ }

One lease record per file, replaced atomically: the record is written to <path>.tmp, fsynced, renamed over <path>, and the directory is fsynced (Unix). load reads only <path>, so a torn temp file left by a crash is ignored and overwritten by the next save. The file carries a checksum; a committed file that fails it is reported as StoreError::Corrupt.

One process should own a given file; the store does not lock across processes.

Implementations

impl FileLeaseStore

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

pub fn path(&self) -> &Path

pub fn temp_path(&self) -> PathBuf

Where in-progress writes go before the atomic rename.

Trait Implementations

impl Clone for FileLeaseStore

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FileLeaseStore

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

Formats the value using the given formatter.

impl LeaseStore for FileLeaseStore

fn load(&self) -> Result<Option<LeaseRecord>, StoreError>

Ok(None) when nothing was ever saved.

fn save(&self, record: &LeaseRecord) -> Result<(), StoreError>