42 lines
1.3 KiB
Rust
42 lines
1.3 KiB
Rust
// Copyright 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-emscripten no threads support
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#![feature(box_syntax, set_stdio)]
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use std::io::prelude::*;
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use std::io;
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use std::str;
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use std::sync::{Arc, Mutex};
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use std::thread;
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struct Sink(Arc<Mutex<Vec<u8>>>);
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impl Write for Sink {
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fn write(&mut self, data: &[u8]) -> io::Result<usize> {
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Write::write(&mut *self.0.lock().unwrap(), data)
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}
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fn flush(&mut self) -> io::Result<()> { Ok(()) }
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}
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fn main() {
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let data = Arc::new(Mutex::new(Vec::new()));
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let sink = Sink(data.clone());
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let res = thread::Builder::new().spawn(move|| -> () {
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io::set_panic(Box::new(sink));
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panic!("Hello, world!")
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}).unwrap().join();
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assert!(res.is_err());
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let output = data.lock().unwrap();
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let output = str::from_utf8(&output).unwrap();
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assert!(output.contains("Hello, world!"));
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}
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