rust/tests/run-pass/concurrency/parking.rs
2020-10-02 23:35:00 +02:00

38 lines
874 B
Rust

// ignore-windows: Concurrency on Windows is not supported yet.
// compile-flags: -Zmiri-disable-isolation
use std::thread;
use std::time::{Duration, Instant};
// Normally, waiting in park/park_timeout may spuriously wake up early, but we
// know Miri's timed synchronization primitives do not do that.
fn park_timeout() {
let start = Instant::now();
thread::park_timeout(Duration::from_millis(200));
assert!((200..500).contains(&start.elapsed().as_millis()));
}
fn park_unpark() {
let t1 = thread::current();
let t2 = thread::spawn(move || {
thread::park();
thread::sleep(Duration::from_millis(200));
t1.unpark();
});
let start = Instant::now();
t2.thread().unpark();
thread::park();
assert!((200..500).contains(&start.elapsed().as_millis()));
}
fn main() {
park_timeout();
park_unpark();
}