i3status_rs/
subprocess.rs

1use std::io;
2use std::os::unix::process::CommandExt as _;
3use std::process::{Command, Stdio};
4
5/// Spawn a new detached process
6pub fn spawn_process(cmd: &str, args: &[&str]) -> io::Result<()> {
7    let mut proc = Command::new(cmd);
8    proc.args(args);
9    proc.stdin(Stdio::null());
10    proc.stdout(Stdio::null());
11    // Safety: libc::daemon() is async-signal-safe
12    unsafe {
13        proc.pre_exec(|| match libc::daemon(0, 0) {
14            -1 => Err(io::Error::other("Failed to detach new process")),
15            _ => Ok(()),
16        });
17    }
18    proc.spawn()?.wait()?;
19    Ok(())
20}
21
22/// Spawn a new detached shell
23pub fn spawn_shell(cmd: &str) -> io::Result<()> {
24    spawn_process("sh", &["-c", cmd])
25}
26
27pub async fn spawn_shell_sync(cmd: &str) -> io::Result<()> {
28    tokio::process::Command::new("sh")
29        .args(["-c", cmd])
30        .stdin(Stdio::null())
31        .stdout(Stdio::null())
32        .spawn()?
33        .wait()
34        .await?;
35    Ok(())
36}
i3status_rs/subprocess.rs

i3status_rs/
subprocess.rs
