Struct File 

pub struct File { /* private fields */ }

One owned file descriptor, including its kernel file offset and locks.

Implementations

impl File

pub fn try_read<'a>(&self, bytes: &'a mut [u8]) -> Result<&'a mut [u8], Errno>

pub fn try_read_at<'a>( &self, bytes: &'a mut [u8], offset: Offset, ) -> Result<&'a mut [u8], Errno>

Reads one prefix without changing this file’s current position.

pub fn try_write<'a>(&self, bytes: &'a [u8]) -> Result<&'a [u8], Errno>

pub fn metadata(&self) -> Result<Metadata, Errno>

pub fn try_lock(&self) -> Result<(), Errno>

Attempts an exclusive advisory lock without waiting for its current owner.

pub fn try_sync(&self) -> Result<(), Errno>

Trait Implementations

impl AsFd for File

fn as_fd(&self) -> BorrowedFd<'_>

Borrows the file descriptor.

impl From<File> for File

fn from(file: File) -> Self

Converts to this type from the input type.

impl From<File> for File

fn from(file: File) -> Self

Converts to this type from the input type.

impl From<File> for OwnedFd

fn from(file: File) -> Self

Converts to this type from the input type.

impl From<OwnedFd> for File

fn from(file: OwnedFd) -> Self

Converts to this type from the input type.