Struct Region 

pub struct Region(/* private fields */);

Named region within a database providing isolated storage space.

Regions grow dynamically as data is written and can be moved within the database file to optimize space usage. Each region has a unique ID for lookup.

Implementations

impl Region

pub fn new( db: &Database, id: String, index: usize, start: u64, len: u64, reserved: u64, ) -> Self

pub fn from(db: &Database, index: usize, meta: RegionMetadata) -> Self

pub fn index(&self) -> usize

pub fn meta(&self) -> &RwLock<RegionMetadata>

pub fn db(&self) -> Database

pub fn create_reader(&self) -> Reader<'static>

pub fn open_db_read_only_file(&self) -> Result<File>

pub fn write_all_at(&self, data: &[u8], at: u64) -> Result<()>

pub fn truncate(&self, from: u64) -> Result<()>

pub fn truncate_write_all(&self, from: u64, data: &[u8]) -> Result<()>

Trait Implementations

impl Clone for Region

fn clone(&self) -> Region

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Region

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

Formats the value using the given formatter.

impl Deref for Region

type Target = Arc<RegionInner>

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.