Struct compio_driver::op::ReadAt

pub struct ReadAt<T: IoBufMut> { /* private fields */ }

Read a file at specified position into specified buffer.

Implementations

impl<T: IoBufMut> ReadAt<T>

pub fn new(fd: RawFd, offset: u64, buffer: T) -> Self

Create ReadAt.

Trait Implementations

impl<T: Debug + IoBufMut> Debug for ReadAt<T>

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

Formats the value using the given formatter.

impl<T: IoBufMut> IntoInner for ReadAt<T>

type Inner = T

The inner type.

fn into_inner(self) -> Self::Inner

Get the inner buffer.

impl<T: IoBufMut> OpCode for ReadAt<T>

fn is_nonblocking(&self) -> bool

Determines that the operation is really non-blocking defined by POSIX. If not, the driver will try to operate it in another thread.

fn pre_submit(self: Pin<&mut Self>) -> Result<Decision>

Perform the operation before submit, and return Decision to indicate whether submitting the operation to polling is required.

fn on_event(self: Pin<&mut Self>, event: &Event) -> Poll<Result<usize>>

Perform the operation after received corresponding event.