82 lines
3.3 KiB
Rust
82 lines
3.3 KiB
Rust
// Just instantiate some data structures to make sure we got all their foreign items covered.
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// Requires full MIR on Windows.
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#![feature(rustc_private)]
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use std::sync;
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extern crate libc;
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fn main() {
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let m = sync::Mutex::new(0);
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{
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let _guard = m.lock();
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let try_lock_error = m.try_lock().unwrap_err();
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if let sync::TryLockError::Poisoned(e) = try_lock_error {
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panic!("{}", e);
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}
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}
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drop(m.try_lock().unwrap());
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drop(m);
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#[cfg(not(target_os = "windows"))] // TODO: implement RwLock on Windows
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{
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let rw = sync::RwLock::new(0);
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{
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let _read_guard = rw.read().unwrap();
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drop(rw.read().unwrap());
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drop(rw.try_read().unwrap());
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let try_lock_error = rw.try_write().unwrap_err();
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if let sync::TryLockError::Poisoned(e) = try_lock_error {
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panic!("{}", e);
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}
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}
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{
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let _write_guard = rw.write().unwrap();
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let try_lock_error = rw.try_read().unwrap_err();
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if let sync::TryLockError::Poisoned(e) = try_lock_error {
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panic!("{}", e);
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}
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let try_lock_error = rw.try_write().unwrap_err();
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if let sync::TryLockError::Poisoned(e) = try_lock_error {
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panic!("{}", e);
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}
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}
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// need to go a layer deeper and test the behavior of libc functions, because
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// std::sys::unix::rwlock::RWLock keeps track of write_locked and num_readers
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unsafe {
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let mut mutex: libc::pthread_mutex_t = std::mem::zeroed();
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assert_eq!(libc::pthread_mutex_init(&mut mutex as *mut _, std::ptr::null_mut()), 0);
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assert_eq!(libc::pthread_mutex_lock(&mut mutex as *mut _), 0);
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assert_eq!(libc::pthread_mutex_trylock(&mut mutex as *mut _), libc::EBUSY);
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assert_eq!(libc::pthread_mutex_unlock(&mut mutex as *mut _), 0);
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assert_eq!(libc::pthread_mutex_trylock(&mut mutex as *mut _), 0);
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assert_eq!(libc::pthread_mutex_unlock(&mut mutex as *mut _), 0);
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assert_eq!(libc::pthread_mutex_destroy(&mut mutex as *mut _), 0);
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}
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unsafe {
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let mut rw: libc::pthread_rwlock_t = std::mem::zeroed();
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assert_eq!(libc::pthread_rwlock_init(&mut rw as *mut _, std::ptr::null_mut()), 0);
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assert_eq!(libc::pthread_rwlock_rdlock(&mut rw as *mut _), 0);
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assert_eq!(libc::pthread_rwlock_rdlock(&mut rw as *mut _), 0);
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assert_eq!(libc::pthread_rwlock_unlock(&mut rw as *mut _), 0);
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assert_eq!(libc::pthread_rwlock_tryrdlock(&mut rw as *mut _), 0);
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assert_eq!(libc::pthread_rwlock_unlock(&mut rw as *mut _), 0);
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assert_eq!(libc::pthread_rwlock_trywrlock(&mut rw as *mut _), libc::EBUSY);
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assert_eq!(libc::pthread_rwlock_unlock(&mut rw as *mut _), 0);
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assert_eq!(libc::pthread_rwlock_wrlock(&mut rw as *mut _), 0);
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assert_eq!(libc::pthread_rwlock_tryrdlock(&mut rw as *mut _), libc::EBUSY);
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assert_eq!(libc::pthread_rwlock_trywrlock(&mut rw as *mut _), libc::EBUSY);
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assert_eq!(libc::pthread_rwlock_unlock(&mut rw as *mut _), 0);
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assert_eq!(libc::pthread_rwlock_destroy(&mut rw as *mut _), 0);
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}
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}
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}
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