ChildExt

tracing_core::stdlib::os::unix::prelude

Trait ChildExt 

Source 
pub trait ChildExt: Sealed {
    // Required method
    fn send_signal(&self, signal: i32) -> Result<(), Error>;
}
🔬This is a nightly-only experimental API. (unix_send_signal #141975)

Required Methods§

Source

fn send_signal(&self, signal: i32) -> Result<(), Error>

🔬This is a nightly-only experimental API. (unix_send_signal #141975)

Sends a signal to a child process.

§Errors

This function will return an error if the signal is invalid. The integer values associated with signals are implementation-specific, so it’s encouraged to use a crate that provides posix bindings.

§Examples
#![feature(unix_send_signal)]

use std::{io, os::unix::process::ChildExt, process::{Command, Stdio}};

use libc::SIGTERM;

fn main() -> io::Result<()> {
    let child = Command::new("cat").stdin(Stdio::piped()).spawn()?;
    child.send_signal(SIGTERM)?;
    Ok(())
}

Implementors§