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// Copyright 2017 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
// ignore-cloudabi no processes
// ignore-emscripten no processes
#![feature(process_try_wait)]
use std::env;
use std::process::Command;
use std::thread;
use std::time::Duration;
fn main() {
let args = env::args().collect::<Vec<_>>();
if args.len() != 1 {
match &args[1][..] {
"sleep" => thread::sleep(Duration::new(1_000, 0)),
_ => {}
}
return
}
let mut me = Command::new(env::current_exe().unwrap())
.arg("sleep")
.spawn()
.unwrap();
let maybe_status = me.try_wait().unwrap();
assert!(maybe_status.is_none());
let maybe_status = me.try_wait().unwrap();
assert!(maybe_status.is_none());
me.kill().unwrap();
me.wait().unwrap();
let status = me.try_wait().unwrap().unwrap();
assert!(!status.success());
let status = me.try_wait().unwrap().unwrap();
assert!(!status.success());
let mut me = Command::new(env::current_exe().unwrap())
.arg("return-quickly")
.spawn()
.unwrap();
loop {
match me.try_wait() {
Ok(Some(res)) => {
assert!(res.success());
break
}
Ok(None) => {
thread::sleep(Duration::from_millis(1));
}
Err(e) => panic!("error in try_wait: {}", e),
}
}
let status = me.try_wait().unwrap().unwrap();
assert!(status.success());
}
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