src/test/run-pass/process/process-exit.rs

   1 // Copyright 2015 The Rust Project Developers. See the COPYRIGHT
   2 // file at the top-level directory of this distribution and at
   3 // http://rust-lang.org/COPYRIGHT.
   4 //
   5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
   6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
   7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
   8 // option. This file may not be copied, modified, or distributed
   9 // except according to those terms.
  10
  11 // run-pass
  12 #![allow(unused_imports)]
  13 // ignore-cloudabi no processes
  14 // ignore-emscripten no processes
  15
  16 use std::env;
  17 use std::process::{self, Command, Stdio};
  18
  19 fn main() {
  20     let args: Vec<String> = env::args().collect();
  21     if args.len() > 1 && args[1] == "child" {
  22         child();
  23     } else {
  24         parent();
  25     }
  26 }
  27
  28 fn parent() {
  29     let args: Vec<String> = env::args().collect();
  30     let status = Command::new(&args[0]).arg("child").status().unwrap();
  31     assert_eq!(status.code(), Some(2));
  32 }
  33
  34 fn child() -> i32 {
  35     process::exit(2);
  36 }