Enum tokio_file::BufRef

pub enum BufRef {
    None,
    BoxedSlice(Box<dyn Borrow<[u8]> + 'static>),
    BoxedMutSlice(Box<dyn BorrowMut<[u8]> + 'static>),
}

Stores a reference to the buffer used by the AioCb, if any.

After the I/O operation is done, can be retrieved by buf_ref

Variants

None

Either the AioCb has no buffer, as for an fsync operation, or a reference can't be stored, as when constructed from a slice

BoxedSlice(Box<dyn Borrow<[u8]> + 'static>)

Immutable generic boxed slice

BoxedMutSlice(Box<dyn BorrowMut<[u8]> + 'static>)

Mutable generic boxed slice

Methods

impl BufRef

pub fn boxed_slice(&self) -> Option<&dyn Borrow<[u8]>>

Return the inner BoxedSlice, if any

pub fn boxed_mut_slice(&mut self) -> Option<&mut dyn BorrowMut<[u8]>>

Return the inner BoxedMutSlice, if any

pub fn is_none(&self) -> bool

Is this BufRef None?

pub fn len(&self) -> Option<usize>

Length of the buffer, if any