rust/src/test/run-pass/process-detach.rs
Alex Crichton a9bd447400 Roll std::run into std::io::process
The std::run module is a relic from a standard library long since past, and
there's not much use to having two modules to execute processes with where one
is slightly more convenient. This commit merges the two modules, moving lots of
functionality from std::run into std::io::process and then deleting
std::run.

New things you can find in std::io::process are:

* Process::new() now only takes prog/args
* Process::configure() takes a ProcessConfig
* Process::status() is the same as run::process_status
* Process::output() is the same as run::process_output
* I/O for spawned tasks is now defaulted to captured in pipes instead of ignored
* Process::kill() was added (plus an associated green/native implementation)
* Process::wait_with_output() is the same as the old finish_with_output()
* destroy() is now signal_exit()
* force_destroy() is now signal_kill()

Closes #2625
Closes #10016
2014-02-23 21:51:17 -08:00

56 lines
1.7 KiB
Rust

// Copyright 2014 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-fast
// ignore-win32
// ignore-android
// This test ensures that the 'detach' field on processes does the right thing.
// By detaching the child process, they should be put into a separate process
// group. We test this by spawning a detached process, then killing our own
// group with a signal.
//
// Note that the first thing we do is put ourselves in our own process group so
// we don't interfere with other running tests.
use std::libc;
use std::io::process;
use std::io::signal::{Listener, Interrupt};
fn main() {
unsafe { libc::setsid(); }
let config = process::ProcessConfig {
program : "/bin/sh",
args: &[~"-c", ~"read a"],
detach: true,
.. process::ProcessConfig::new()
};
// we shouldn't die because of an interrupt
let mut l = Listener::new();
l.register(Interrupt).unwrap();
// spawn the child
let mut p = process::Process::configure(config).unwrap();
// send an interrupt to everyone in our process group
unsafe { libc::funcs::posix88::signal::kill(0, libc::SIGINT); }
// Wait for the child process to die (terminate it's stdin and the read
// should fail).
drop(p.stdin.take());
match p.wait() {
process::ExitStatus(..) => {}
process::ExitSignal(..) => fail!()
}
}