2 // ignore-android needs extra network permissions
3 // ignore-emscripten no threads or sockets support
4 // ignore-netbsd system ulimit (Too many open files)
5 // ignore-openbsd system ulimit (Too many open files)
7 use std::io::prelude::*;
8 use std::net::{TcpListener, TcpStream};
10 use std::sync::mpsc::channel;
11 use std::time::Duration;
12 use std::thread::{self, Builder};
14 const TARGET_CNT: usize = 200;
17 // This test has a chance to time out, try to not let it time out
18 thread::spawn(move|| -> () {
19 thread::sleep(Duration::from_secs(30));
23 let listener = TcpListener::bind("127.0.0.1:0").unwrap();
24 let addr = listener.local_addr().unwrap();
25 thread::spawn(move || -> () {
27 let mut stream = match listener.accept() {
28 Ok(stream) => stream.0,
31 let _ = stream.read(&mut [0]);
32 let _ = stream.write(&[2]);
36 let (tx, rx) = channel();
38 let mut spawned_cnt = 0;
39 for _ in 0..TARGET_CNT {
41 let res = Builder::new().stack_size(64 * 1024).spawn(move|| {
42 match TcpStream::connect(addr) {
44 let _ = stream.write(&[1]);
45 let _ = stream.read(&mut [0]);
56 // Wait for all clients to exit, but don't wait for the server to exit. The
57 // server just runs infinitely.
59 for _ in 0..spawned_cnt {
62 assert_eq!(spawned_cnt, TARGET_CNT);