33 lines
722 B
Rust
33 lines
722 B
Rust
|
// ignore-windows: No libc on Windows
|
||
|
|
|
||
|
|
#![feature(rustc_private)]
|
||
|
|
|
||
|
|
extern crate libc;
|
||
|
|
|
||
|
|
use std::cell::UnsafeCell;
|
||
|
|
use std::sync::Arc;
|
||
|
|
use std::thread;
|
||
|
|
|
||
|
|
struct Mutex(UnsafeCell<libc::pthread_mutex_t>);
|
||
|
|
|
||
|
|
unsafe impl Send for Mutex {}
|
||
|
|
unsafe impl Sync for Mutex {}
|
||
|
|
|
||
|
|
fn new_lock() -> Arc<Mutex> {
|
||
|
|
Arc::new(Mutex(UnsafeCell::new(libc::PTHREAD_MUTEX_INITIALIZER)))
|
||
|
|
}
|
||
|
|
|
||
|
|
fn main() {
|
||
|
|
unsafe {
|
||
|
|
let lock = new_lock();
|
||
|
|
assert_eq!(libc::pthread_mutex_lock(lock.0.get() as *mut _), 0);
|
||
|
|
|
||
|
|
let lock_copy = lock.clone();
|
||
|
|
thread::spawn(move || {
|
||
|
|
assert_eq!(libc::pthread_mutex_lock(lock_copy.0.get() as *mut _), 0); //~ ERROR: deadlock
|
||
|
|
})
|
||
|
|
.join()
|
||
|
|
.unwrap();
|
||
|
|
}
|
||
|
|
}
|