PollEvented in tokio 0.3

[yaa110]

I have used PollEvented in tokio-tun to provide AsyncRead and AsyncWrite implementations for a file descriptor. How can I replace it in my code?

pub struct TunIo(RawFd);

pub struct Tun {
    iface: Arc<Interface>,
    io: PollEvented<TunIo>,
}

[Darksonn]

This will be replaced by AsyncFd in #2903, which will hopefully be part of 0.3.1 soon.

[Darksonn]

Note that if you have an opinion on the destructor discussion in that PR, please do submit it.