pub fn wait_parent() -> Option<ExitStatus>Examples found in repository?
examples/single.rs (line 7)
1fn main() {
2 match std::env::args().nth(1).as_deref() {
3 Some("--wait-parent") => {
4 // std::thread::sleep(std::time::Duration::from_secs(5));
5
6 println!("Waiting parent...");
7 let status = wait_parent::wait_parent();
8
9 println!("Parent exited with {:?}", status);
10 // std::fs::write("status.txt", format!("{:?}", status)).unwrap();
11
12 const STATUS_CONTROL_C_EXIT: i32 = 0xC000013Au32 as i32;
13 match status.and_then(|s| s.code()) {
14 Some(0 | STATUS_CONTROL_C_EXIT) => (),
15 Some(_) => {
16 // std::process::Command::new(std::env::current_exe().unwrap())
17 // .spawn()
18 // .unwrap();
19
20 std::thread::sleep(std::time::Duration::from_secs(5));
21 println!("Child exiting...");
22 }
23 None => (),
24 }
25 }
26 Some(_) => unreachable!(),
27 None => {
28 println!("Spwaning child...");
29 std::process::Command::new(std::env::current_exe().unwrap())
30 .arg("--wait-parent")
31 .spawn()
32 .unwrap();
33
34 std::thread::sleep(std::time::Duration::from_secs(3));
35
36 // panic!();
37 }
38 }
39}