Type Definition iou::registrar::RegisteredFd

type RegisteredFd = Registered<RawFd>;

A member of the kernel's registered fileset.

Valid RegisteredFds can be obtained through a Registrar.

Registered files handle kernel fileset indexing behind the scenes and can often be used in place of raw file descriptors. Not all IO operations support registered files.

Submission event prep methods on RegisteredFd will ensure that the submission event's SubmissionFlags::FIXED_FILE flag is properly set.

Implementations

impl RegisteredFd

pub fn is_placeholder(&self) -> bool

Trait Implementations

impl AsRawFd for RegisteredFd

fn as_raw_fd(&self) -> RawFd

Extracts the raw file descriptor.

impl UringFd for RegisteredFd

fn as_raw_fd(&self) -> RawFd

fn update_sqe(&self, sqe: &mut SQE<'_>)