Struct nuts_directory::DirectoryBackend

pub struct DirectoryBackend<P: AsRef<Path>> { /* private fields */ }

Trait Implementations

impl<P: AsRef<Path>> Backend for DirectoryBackend<P>

type Settings = Settings

Runtime configuration used by the backend.

type Err = Error

The error type used by methods of this trait.

type Id = Id

The id identifies a block in the storage. It is used everywhere you need a pointer to a block.

type Info = Info

Information of the backend.

fn info(&self) -> Result<Info, Error>

Returns information from the backend.

fn block_size(&self) -> u32

Returns the block size of the backend.

fn aquire(&mut self, buf: &[u8]) -> Result<Self::Id, Error>

Aquires a new block in the backend.

fn release(&mut self, id: Self::Id) -> Result<(), Error>

Releases a block again.

fn read(&mut self, id: &Id, buf: &mut [u8]) -> Result<usize, Error>

Reads a block from the backend.

fn write(&mut self, id: &Id, buf: &[u8]) -> Result<usize, Error>

Writes a block into the backend.

fn write_header(&mut self, buf: &[u8; 512]) -> Result<(), Error>

Puts the given buf into the header of the backend.

fn delete(self)

Deletes the entire instance and all traces.

impl<P: AsRef<Path>> Create<DirectoryBackend<P>> for CreateOptions<P>

fn settings(&self) -> Settings

Returns the settings of this backend instance.

fn build( self, header: [u8; 512], overwrite: bool ) -> Result<DirectoryBackend<P>, Error>

Create an instance of the Backend.

impl<P: Debug + AsRef<Path>> Debug for DirectoryBackend<P>

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

Formats the value using the given formatter.

impl<P: AsRef<Path>> Open<DirectoryBackend<P>> for OpenOptions<P>

fn build(self, settings: Settings) -> Result<DirectoryBackend<P>, Error>

Create an instance of the Backend.

impl<P: AsRef<Path>> ReceiveHeader<DirectoryBackend<P>> for DirectoryBackend<P>

fn get_header_bytes(&mut self, bytes: &mut [u8; 512]) -> Result<(), Error>

Receives the binary header data from the backend.

impl<P: AsRef<Path>> ReceiveHeader<DirectoryBackend<P>> for OpenOptions<P>

fn get_header_bytes(&mut self, bytes: &mut [u8; 512]) -> Result<(), Error>

Receives the binary header data from the backend.