7828c3dd28
https://github.com/rust-lang/rfcs/pull/221 The current terminology of "task failure" often causes problems when writing or speaking about code. You often want to talk about the possibility of an operation that returns a Result "failing", but cannot because of the ambiguity with task failure. Instead, you have to speak of "the failing case" or "when the operation does not succeed" or other circumlocutions. Likewise, we use a "Failure" header in rustdoc to describe when operations may fail the task, but it would often be helpful to separate out a section describing the "Err-producing" case. We have been steadily moving away from task failure and toward Result as an error-handling mechanism, so we should optimize our terminology accordingly: Result-producing functions should be easy to describe. To update your code, rename any call to `fail!` to `panic!` instead. Assuming you have not created your own macro named `panic!`, this will work on UNIX based systems: grep -lZR 'fail!' . | xargs -0 -l sed -i -e 's/fail!/panic!/g' You can of course also do this by hand. [breaking-change]
106 lines
3.1 KiB
Rust
106 lines
3.1 KiB
Rust
// Copyright 2012-2013-2014 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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// ignore-pretty
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// compile-flags:--test
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// NB: These tests kill child processes. Valgrind sees these children as leaking
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// memory, which makes for some *confusing* logs. That's why these are here
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// instead of in std.
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#![feature(macro_rules)]
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#![reexport_test_harness_main = "test_main"]
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extern crate libc;
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use std::io::{Process, Command, timer};
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use std::time::Duration;
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use std::str;
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macro_rules! succeed( ($e:expr) => (
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match $e { Ok(..) => {}, Err(e) => panic!("panic: {}", e) }
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) )
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fn test_destroy_once() {
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let mut p = sleeper();
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match p.signal_exit() {
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Ok(()) => {}
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Err(e) => panic!("error: {}", e),
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}
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}
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#[cfg(unix)]
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pub fn sleeper() -> Process {
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Command::new("sleep").arg("1000").spawn().unwrap()
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}
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#[cfg(windows)]
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pub fn sleeper() -> Process {
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// There's a `timeout` command on windows, but it doesn't like having
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// its output piped, so instead just ping ourselves a few times with
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// gaps in between so we're sure this process is alive for awhile
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Command::new("ping").arg("127.0.0.1").arg("-n").arg("1000").spawn().unwrap()
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}
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fn test_destroy_twice() {
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let mut p = sleeper();
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succeed!(p.signal_exit()); // this shouldnt crash...
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let _ = p.signal_exit(); // ...and nor should this (and nor should the destructor)
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}
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pub fn test_destroy_actually_kills(force: bool) {
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use std::io::process::{Command, ProcessOutput, ExitStatus, ExitSignal};
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use std::io::timer;
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use libc;
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use std::str;
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#[cfg(all(unix,not(target_os="android")))]
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static BLOCK_COMMAND: &'static str = "cat";
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#[cfg(all(unix,target_os="android"))]
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static BLOCK_COMMAND: &'static str = "/system/bin/cat";
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#[cfg(windows)]
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static BLOCK_COMMAND: &'static str = "cmd";
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// this process will stay alive indefinitely trying to read from stdin
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let mut p = Command::new(BLOCK_COMMAND).spawn().unwrap();
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assert!(p.signal(0).is_ok());
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if force {
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p.signal_kill().unwrap();
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} else {
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p.signal_exit().unwrap();
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}
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// Don't let this test time out, this should be quick
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let (tx, rx1) = channel();
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let mut t = timer::Timer::new().unwrap();
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let rx2 = t.oneshot(Duration::milliseconds(1000));
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spawn(proc() {
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select! {
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() = rx2.recv() => unsafe { libc::exit(1) },
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() = rx1.recv() => {}
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}
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});
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match p.wait().unwrap() {
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ExitStatus(..) => panic!("expected a signal"),
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ExitSignal(..) => tx.send(()),
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}
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}
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fn test_unforced_destroy_actually_kills() {
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test_destroy_actually_kills(false);
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}
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fn test_forced_destroy_actually_kills() {
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test_destroy_actually_kills(true);
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}
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