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>

unsafe fn operate( self: Pin<&mut Self>, optr: *mut OVERLAPPED ) -> Poll<Result<usize>>

Perform Windows API call with given pointer to overlapped struct.

unsafe fn cancel(self: Pin<&mut Self>, optr: *mut OVERLAPPED) -> Result<()>

Cancel the async IO operation.

fn is_overlapped(&self) -> bool

Determines that the operation is really overlapped defined by Windows API. If not, the driver will try to operate it in another thread.