Struct OpenFileDescription 

#[non_exhaustive]
pub struct OpenFileDescription { /* private fields */ }

State of a file opened for reading and/or writing

Implementations

impl OpenFileDescription

pub fn is_readable(&self) -> bool

Returns true if you can read from this open file description.

pub fn is_writable(&self) -> bool

Returns true if you can write to this open file description.

pub fn is_ready_for_reading(&self) -> bool

Returns true if you can read from this open file description without blocking.

pub fn is_ready_for_writing(&self) -> bool

Returns true if you can write to this open file description without blocking.

pub fn read(&mut self, buffer: &mut [u8]) -> Result<usize, Errno>

Reads from this open file description.

Returns the number of bytes successfully read.

pub fn write(&mut self, buffer: &[u8]) -> Result<usize, Errno>

Writes to this open file description.

Returns the number of bytes successfully written.

pub fn seek(&mut self, position: SeekFrom) -> Result<usize, Errno>

Moves the file offset and returns the new offset.

pub fn inode(&self) -> &Rc<RefCell<Inode>>

Returns the i-node this open file description is operating on.

Trait Implementations

impl Clone for OpenFileDescription

fn clone(&self) -> OpenFileDescription

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for OpenFileDescription

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

Formats the value using the given formatter.

impl Drop for OpenFileDescription

fn drop(&mut self)

Executes the destructor for this type.