Struct ReadVectoredAt

pub struct ReadVectoredAt<T: IoVectoredBufMut, S> { /* private fields */ }

Read a file at specified position into vectored buffer.

Implementations

impl<T: IoVectoredBufMut, S> ReadVectoredAt<T, S>

pub fn new(fd: SharedFd<S>, offset: u64, buffer: T) -> Self

Create ReadVectoredAt.

Trait Implementations

impl<T: IoVectoredBufMut, S> IntoInner for ReadVectoredAt<T, S>

type Inner = T

The inner type.

fn into_inner(self) -> Self::Inner

Get the inner buffer.

impl<T: IoVectoredBufMut, S: AsRawFd> OpCode for ReadVectoredAt<T, S>

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. If this operation is blocking, the return value should be Poll::Ready.

impl<T: IoVectoredBufMut, S: AsRawFd> OpCode for ReadVectoredAt<T, S>

fn create_entry(self: Pin<&mut Self>) -> OpEntry

Create submission entry.

fn call_blocking(self: Pin<&mut Self>) -> Result<usize>

Call the operation in a blocking way. This method will only be called if [create_entry] returns OpEntry::Blocking.