pub fn preadv2<Fd: AsFd>(
fd: Fd,
bufs: &mut [IoSliceMut<'_>],
offset: u64,
flags: ReadWriteFlags,
) -> Result<usize>
pub fn preadv2<Fd: AsFd>(
fd: Fd,
bufs: &mut [IoSliceMut<'_>],
offset: u64,
flags: ReadWriteFlags,
) -> Result<usize>