2 // ignore-android needs extra network permissions
3 // ignore-cloudabi no global network namespace access
4 // ignore-emscripten no threads or sockets support
5 // ignore-netbsd system ulimit (Too many open files)
6 // ignore-openbsd system ulimit (Too many open files)
7 // ignore-sgx no thread sleep support
9 use std::io::prelude::*;
10 use std::net::{TcpListener, TcpStream};
12 use std::sync::mpsc::channel;
13 use std::time::Duration;
14 use std::thread::{self, Builder};
16 const TARGET_CNT: usize = 200;
19 // This test has a chance to time out, try to not let it time out
20 thread::spawn(move|| -> () {
21 thread::sleep(Duration::from_secs(30));
25 let listener = TcpListener::bind("127.0.0.1:0").unwrap();
26 let addr = listener.local_addr().unwrap();
27 thread::spawn(move || -> () {
29 let mut stream = match listener.accept() {
30 Ok(stream) => stream.0,
33 let _ = stream.read(&mut [0]);
34 let _ = stream.write(&[2]);
38 let (tx, rx) = channel();
40 let mut spawned_cnt = 0;
41 for _ in 0..TARGET_CNT {
43 let res = Builder::new().stack_size(64 * 1024).spawn(move|| {
44 match TcpStream::connect(addr) {
46 let _ = stream.write(&[1]);
47 let _ = stream.read(&mut [0]);
58 // Wait for all clients to exit, but don't wait for the server to exit. The
59 // server just runs infinitely.
61 for _ in 0..spawned_cnt {
64 assert_eq!(spawned_cnt, TARGET_CNT);