rust/src/test/run-pass/tcp-stress.rs
2016-02-11 12:34:41 +01:00

66 lines
2.1 KiB
Rust

// Copyright 2012-2015 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.
// ignore-android needs extra network permissions
// ignore-bitrig system ulimit (Too many open files)
// ignore-netbsd system ulimit (Too many open files)
// ignore-openbsd system ulimit (Too many open files)
// ignore-emscripten no threads or sockets support
use std::io::prelude::*;
use std::net::{TcpListener, TcpStream};
use std::process;
use std::sync::mpsc::channel;
use std::thread::{self, Builder};
fn main() {
// This test has a chance to time out, try to not let it time out
thread::spawn(move|| -> () {
thread::sleep_ms(30 * 1000);
process::exit(1);
});
let mut listener = TcpListener::bind("127.0.0.1:0").unwrap();
let addr = listener.local_addr().unwrap();
thread::spawn(move || -> () {
loop {
let mut stream = match listener.accept() {
Ok(stream) => stream.0,
Err(error) => continue,
};
stream.read(&mut [0]);
stream.write(&[2]);
}
});
let (tx, rx) = channel();
for _ in 0..1000 {
let tx = tx.clone();
Builder::new().stack_size(64 * 1024).spawn(move|| {
match TcpStream::connect(addr) {
Ok(mut stream) => {
stream.write(&[1]);
stream.read(&mut [0]);
},
Err(..) => {}
}
tx.send(()).unwrap();
});
}
// Wait for all clients to exit, but don't wait for the server to exit. The
// server just runs infinitely.
drop(tx);
for _ in 0..1000 {
rx.recv().unwrap();
}
process::exit(0);
}