Struct TableStore 

pub struct TableStore { /* private fields */ }

Implementations

impl TableStore

pub fn init(dir: PathBuf, key_size: usize) -> Self

pub fn reinit(&self)

pub fn key_size(&self) -> usize

pub fn load(dir: PathBuf, key_size: usize) -> Self

pub fn save_table( &self, mut_table: MutableTable, ) -> TableStoreResult<Arc<ReadonlyTable>>

pub fn get_head(&self) -> TableStoreResult<Arc<ReadonlyTable>>

pub fn get_head_locked( &self, ) -> TableStoreResult<(Arc<ReadonlyTable>, FileLock)>

pub fn gc( &self, head: &Arc<ReadonlyTable>, keep_newer: SystemTime, ) -> Result<(), PathError>

Prunes unreachable table segments.

All table segments reachable from the head won’t be removed. In addition to that, segments created after keep_newer will be preserved. This mitigates a risk of deleting new segments created concurrently by another process.

The caller may decide whether to lock the store by get_head_locked(). It’s generally safe to run gc() without locking so long as the keep_newer time is reasonably old, and all writers reload table segments by get_head_locked() before adding new entries.