【Rust日报】 2019-05-17：一个通用型嵌入式芯片烧录软件

extern crate mio;
extern crate mio_extras;

use mio::*;
use mio_extras::timer::{Timer, Builder};

use std::time::Duration;

fn main()
{
    const TIMER: Token = Token(2);

    let poll = Poll::new().unwrap();
    let mut gman: Timer<u64> = Default::default();

    poll.register(&gman, TIMER, Ready::readable(), PollOpt::edge()).unwrap();
    let mut gman_tout1; 
    let mut events = Events::with_capacity(1024);
    gman_tout1 = gman.set_timeout(Duration::from_millis(2000), 9001);
    gman.cancel_timeout(&gman_tout1);

    loop {
        poll.poll(&mut events, None).unwrap();

        for event in &events {
            match event.token() {
                TIMER => {
                    println!("Timer-Event!");
                    if gman.poll() == Some(9001) {
                        println!("my timeout occured");
                    }
                },
                _ => println!("awkward"),
            }
        }
    }
}