65 lines
1.8 KiB
Rust
65 lines
1.8 KiB
Rust
// run-pass
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// ignore-android needs extra network permissions
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// ignore-emscripten no threads or sockets support
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// ignore-netbsd system ulimit (Too many open files)
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// ignore-openbsd system ulimit (Too many open files)
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use std::io::prelude::*;
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use std::net::{TcpListener, TcpStream};
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use std::process;
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use std::sync::mpsc::channel;
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use std::time::Duration;
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use std::thread::{self, Builder};
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const TARGET_CNT: usize = 200;
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fn main() {
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// This test has a chance to time out, try to not let it time out
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thread::spawn(move|| -> () {
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thread::sleep(Duration::from_secs(30));
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process::exit(1);
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});
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let listener = TcpListener::bind("127.0.0.1:0").unwrap();
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let addr = listener.local_addr().unwrap();
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thread::spawn(move || -> () {
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loop {
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let mut stream = match listener.accept() {
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Ok(stream) => stream.0,
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Err(_) => continue,
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};
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let _ = stream.read(&mut [0]);
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let _ = stream.write(&[2]);
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}
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});
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let (tx, rx) = channel();
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let mut spawned_cnt = 0;
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for _ in 0..TARGET_CNT {
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let tx = tx.clone();
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let res = Builder::new().stack_size(64 * 1024).spawn(move|| {
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match TcpStream::connect(addr) {
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Ok(mut stream) => {
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let _ = stream.write(&[1]);
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let _ = stream.read(&mut [0]);
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},
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Err(..) => {}
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}
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tx.send(()).unwrap();
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});
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if let Ok(_) = res {
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spawned_cnt += 1;
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};
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}
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// Wait for all clients to exit, but don't wait for the server to exit. The
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// server just runs infinitely.
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drop(tx);
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for _ in 0..spawned_cnt {
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rx.recv().unwrap();
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}
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assert_eq!(spawned_cnt, TARGET_CNT);
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process::exit(0);
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}
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