04eced750e
* os::pipe() now returns IoResult<os::Pipe> * os::pipe() is now unsafe because it does not arrange for deallocation of file descriptors * os::Pipe fields are renamed from input to reader and out to write. * PipeStream::pair() has been added. This is a safe method to get a pair of pipes. * Dealing with pipes in native process bindings have been improved to be more robust in the face of failure and intermittent errors. This converts a few fail!() situations to Err situations. Closes #9458 cc #13538 Closes #14724 [breaking-change]
38 lines
1.2 KiB
Rust
38 lines
1.2 KiB
Rust
// Copyright 2012-2014 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.
|
|
|
|
// Be sure that when a SIGPIPE would have been received that the entire process
|
|
// doesn't die in a ball of fire, but rather it's gracefully handled.
|
|
|
|
use std::os;
|
|
use std::io::PipeStream;
|
|
use std::io::Command;
|
|
|
|
fn test() {
|
|
let os::Pipe { reader, writer } = unsafe { os::pipe().unwrap() };
|
|
let reader = PipeStream::open(reader);
|
|
let mut writer = PipeStream::open(writer);
|
|
drop(reader);
|
|
|
|
let _ = writer.write([1]);
|
|
}
|
|
|
|
fn main() {
|
|
let args = os::args();
|
|
let args = args.as_slice();
|
|
if args.len() > 1 && args[1].as_slice() == "test" {
|
|
return test();
|
|
}
|
|
|
|
let mut p = Command::new(args[0].as_slice())
|
|
.arg("test").spawn().unwrap();
|
|
assert!(p.wait().unwrap().success());
|
|
}
|