Enum nix::sys::aio::Buffer

pub enum Buffer<'a> {
    None,
    Bytes(Bytes),
    BytesMut(BytesMut),
    Phantom(PhantomData<&'a mut [u8]>),
}

Owns (uniquely or shared) a memory buffer to keep it from Droping while the kernel has a pointer to it.

Variants

None

No buffer to own.

Used for operations like aio_fsync that have no data, or for unsafe operations that work with raw pointers.

Bytes(Bytes)

Immutable shared ownership Bytes object

BytesMut(BytesMut)

Mutable uniquely owned BytesMut object

Phantom(PhantomData<&'a mut [u8]>)

Keeps a reference to a slice

Methods

impl<'a> Buffer<'a>

pub fn bytes(&self) -> Option<&Bytes>

Return the inner Bytes, if any

pub fn bytes_mut(&self) -> Option<&BytesMut>

Return the inner BytesMut, if any

pub fn is_none(&self) -> bool

Is this Buffer None?

Trait Implementations

impl<'a> Clone for Buffer<'a>

fn clone(&self) -> Buffer<'a>

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<'a> Debug for Buffer<'a>

fn fmt(&self, __arg_0: &mut Formatter) -> Result

Formats the value using the given formatter.