Struct FileBackend

pub struct FileBackend { /* private fields */ }

Stores a database as a file on-disk.

Implementations

impl FileBackend

pub fn new(file: File) -> Result<Self, DatabaseError>

Creates a new backend which stores data to the given file.

Trait Implementations

impl Debug for FileBackend

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

Formats the value using the given formatter.

impl Drop for FileBackend

fn drop(&mut self)

Executes the destructor for this type.

impl StorageBackend for FileBackend

fn len(&self) -> Result<u64, Error>

Gets the current length of the storage.

fn read(&self, offset: u64, len: usize) -> Result<Vec<u8>, Error>

Reads the specified array of bytes from the storage.

fn set_len(&self, len: u64) -> Result<(), Error>

Sets the length of the storage.

fn sync_data(&self, _: bool) -> Result<(), Error>

Syncs all buffered data with the persistent storage.

fn write(&self, offset: u64, data: &[u8]) -> Result<(), Error>

Writes the specified array to the storage.

Layout

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 4 bytes