mirror of https://github.com/rust-lang/rust
65 lines
1.8 KiB
Rust
65 lines
1.8 KiB
Rust
//@ run-pass
|
|
//@ ignore-android needs extra network permissions
|
|
//@ needs-threads
|
|
//@ ignore-netbsd system ulimit (Too many open files)
|
|
//@ ignore-openbsd system ulimit (Too many open files)
|
|
|
|
use std::io::prelude::*;
|
|
use std::net::{TcpListener, TcpStream};
|
|
use std::process;
|
|
use std::sync::mpsc::channel;
|
|
use std::thread::{self, Builder};
|
|
use std::time::Duration;
|
|
|
|
const TARGET_CNT: usize = 200;
|
|
|
|
fn main() {
|
|
// This test has a chance to time out, try to not let it time out
|
|
thread::spawn(move || -> () {
|
|
thread::sleep(Duration::from_secs(30));
|
|
process::exit(1);
|
|
});
|
|
|
|
let 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(_) => continue,
|
|
};
|
|
let _ = stream.read(&mut [0]);
|
|
let _ = stream.write(&[2]);
|
|
}
|
|
});
|
|
|
|
let (tx, rx) = channel();
|
|
|
|
let mut spawned_cnt = 0;
|
|
for _ in 0..TARGET_CNT {
|
|
let tx = tx.clone();
|
|
let res = Builder::new().stack_size(64 * 1024).spawn(move || {
|
|
match TcpStream::connect(addr) {
|
|
Ok(mut stream) => {
|
|
let _ = stream.write(&[1]);
|
|
let _ = stream.read(&mut [0]);
|
|
}
|
|
Err(..) => {}
|
|
}
|
|
tx.send(()).unwrap();
|
|
});
|
|
if let Ok(_) = res {
|
|
spawned_cnt += 1;
|
|
};
|
|
}
|
|
|
|
// 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..spawned_cnt {
|
|
rx.recv().unwrap();
|
|
}
|
|
assert_eq!(spawned_cnt, TARGET_CNT);
|
|
process::exit(0);
|
|
}
|