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Commit | Line | Data |
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b7449926 | 1 | // run-pass |
0bf4aa26 | 2 | #![allow(unused_mut)] |
abe05a73 | 3 | // ignore-emscripten no processes |
48663c56 | 4 | // ignore-sgx no processes |
abe05a73 | 5 | |
85aaf69f | 6 | use std::env; |
c34b1796 AL |
7 | use std::io::prelude::*; |
8 | use std::io; | |
9 | use std::process::{Command, Stdio}; | |
1a4d82fc JJ |
10 | use std::str; |
11 | ||
12 | fn main() { | |
85aaf69f SL |
13 | let args: Vec<String> = env::args().collect(); |
14 | if args.len() > 1 && args[1] == "child" { | |
1a4d82fc JJ |
15 | child(); |
16 | } else { | |
17 | parent(); | |
18 | } | |
19 | } | |
20 | ||
21 | fn parent() { | |
85aaf69f | 22 | let args: Vec<String> = env::args().collect(); |
c34b1796 AL |
23 | let mut p = Command::new(&args[0]).arg("child") |
24 | .stdout(Stdio::piped()) | |
25 | .stdin(Stdio::piped()) | |
26 | .spawn().unwrap(); | |
27 | p.stdin.as_mut().unwrap().write_all(b"test1\ntest2\ntest3").unwrap(); | |
1a4d82fc JJ |
28 | let out = p.wait_with_output().unwrap(); |
29 | assert!(out.status.success()); | |
c34b1796 AL |
30 | let s = str::from_utf8(&out.stdout).unwrap(); |
31 | assert_eq!(s, "test1\ntest2\ntest3\n"); | |
1a4d82fc JJ |
32 | } |
33 | ||
34 | fn child() { | |
c34b1796 | 35 | let mut stdin = io::stdin(); |
85aaf69f | 36 | for line in stdin.lock().lines() { |
1a4d82fc JJ |
37 | println!("{}", line.unwrap()); |
38 | } | |
39 | } |