Struct FsStore 

pub struct FsStore { /* private fields */ }

Local-filesystem store. Writes go to a temp file in the same directory followed by a rename, so a crash mid-write never corrupts the latest snapshot.

Implementations

impl FsStore

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

Trait Implementations

impl SnapshotStore for FsStore

fn write<'life0, 'life1, 'life2, 'async_trait>( &'life0 self, name: &'life1 str, bytes: &'life2 [u8], ) -> Pin<Box<dyn Future<Output = Result<()>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait, 'life2: 'async_trait,

Atomically persist one snapshot blob under name.

fn load_latest<'life0, 'async_trait>( &'life0 self, ) -> Pin<Box<dyn Future<Output = Result<Option<(String, Vec<u8>)>>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait,

Return the newest snapshot blob, or None if the store is empty.

fn prune<'life0, 'async_trait>( &'life0 self, keep: usize, ) -> Pin<Box<dyn Future<Output = Result<usize>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait,

Delete all but the newest keep snapshots. Returns how many were removed.

fn describe(&self) -> String

Human-readable location for logs.