Struct task_fs::TaskFile

pub struct TaskFile { /* private fields */ }

Lazily computed file that holds information about this task. This taskfile does not exist witin the actual filesystem.

Implementations

impl TaskFile

pub fn new(task_id: usize, taskref: WeakTaskRef) -> TaskFile

Trait Implementations

impl ByteReader for TaskFile

fn read_at(&mut self, buf: &mut [u8], offset: usize) -> Result<usize, IoError>

Reads bytes of data from this reader into the given buffer.

impl ByteWriter for TaskFile

fn write_at(&mut self, _buffer: &[u8], _offset: usize) -> Result<usize, IoError>

Writes bytes of data from the given buffer to this writer.

fn flush(&mut self) -> Result<(), IoError>

Flushes this writer’s output stream, ensuring all contents in intermediate buffers are fully written out.

impl File for TaskFile

fn as_mapping(&self) -> Result<&MappedPages, &'static str>

Returns a view of this file as an immutable memory-mapped region.

impl FsNode for TaskFile

fn get_absolute_path(&self) -> String

Recursively gets the absolute pathname as a String

fn get_name(&self) -> String

Returns the string name of the node

fn get_parent_dir(&self) -> Option<DirRef>

Returns the parent directory of the current node.

fn set_parent_dir(&mut self, _: WeakDirRef)

Sets this node’s parent directory. This is useful for ensuring correctness when inserting or removing files or directories from their parent directory.

impl KnownLength for TaskFile

fn len(&self) -> usize

Returns the length (size in bytes) of this I/O stream or device.