Struct DirectIoBackend 

pub struct DirectIoBackend { /* private fields */ }

Direct I/O block backend using O_DIRECT.

Implementations

impl DirectIoBackend

pub fn new(path: &Path, read_only: bool) -> Result<DirectIoBackend, Error>

Creates a new direct I/O backend.

Errors

Returns an error if the file cannot be opened with O_DIRECT.

pub fn pread(&self, offset: u64, buf: &mut [u8]) -> Result<usize, Error>

Reads data at the given offset using pread.

pub fn pwrite(&self, offset: u64, buf: &[u8]) -> Result<usize, Error>

Writes data at the given offset using pwrite.

pub fn sync(&self) -> Result<(), Error>

Syncs the file to disk.

Trait Implementations

impl Drop for DirectIoBackend

fn drop(&mut self)

Executes the destructor for this type.

fn pin_drop(self: Pin<&mut Self>)

🔬This is a nightly-only experimental API. (pin_ergonomics)

Execute the destructor for this type, but different to Drop::drop, it requires self to be pinned.