1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
|
//@ run-pass
//@ needs-subprocess
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());
}
|
