Trait io_lifetimes::AsSocketlike
source · [−]pub trait AsSocketlike: AsFd {
fn as_socketlike(&self) -> BorrowedSocketlike<'_>;
fn as_socketlike_view<Target: SocketlikeViewType>(
&self
) -> SocketlikeView<'_, Target>;
}
Expand description
A portable trait to borrow a reference from an underlying socketlike object.
This is a portability abstraction over Unix-like AsFd
and Windows’
AsSocket
. It also provides the as_socketlike_view
convenience
function providing typed views.
Required methods
fn as_socketlike(&self) -> BorrowedSocketlike<'_>
fn as_socketlike(&self) -> BorrowedSocketlike<'_>
Borrows the reference.
fn as_socketlike_view<Target: SocketlikeViewType>(
&self
) -> SocketlikeView<'_, Target>
fn as_socketlike_view<Target: SocketlikeViewType>(
&self
) -> SocketlikeView<'_, Target>
Return a borrowing view of a resource which dereferences to a &Target
.
Note that [Read
] or [Write
] require &mut Target
, but in some cases,
such as TcpStream
, Read
and Write
are implemented for &Target
in
addition to Target
, and you can get a &mut &Target
by doing &*
on
the resuting view, like this:
ⓘ
let v = s.as_socketlike_view::<std::net::TcpStream>();
(&*v).read(&mut buf).unwrap();