use libc;
use cell::UnsafeCell;
-use sys::sync as ffi;
-pub struct RWLock { inner: UnsafeCell<ffi::pthread_rwlock_t> }
+pub struct RWLock { inner: UnsafeCell<libc::pthread_rwlock_t> }
unsafe impl Send for RWLock {}
unsafe impl Sync for RWLock {}
impl RWLock {
pub const fn new() -> RWLock {
- RWLock { inner: UnsafeCell::new(ffi::PTHREAD_RWLOCK_INITIALIZER) }
+ RWLock { inner: UnsafeCell::new(libc::PTHREAD_RWLOCK_INITIALIZER) }
}
#[inline]
pub unsafe fn read(&self) {
- let r = ffi::pthread_rwlock_rdlock(self.inner.get());
+ let r = libc::pthread_rwlock_rdlock(self.inner.get());
// According to the pthread_rwlock_rdlock spec, this function **may**
// fail with EDEADLK if a deadlock is detected. On the other hand
}
#[inline]
pub unsafe fn try_read(&self) -> bool {
- ffi::pthread_rwlock_tryrdlock(self.inner.get()) == 0
+ libc::pthread_rwlock_tryrdlock(self.inner.get()) == 0
}
#[inline]
pub unsafe fn write(&self) {
- let r = ffi::pthread_rwlock_wrlock(self.inner.get());
+ let r = libc::pthread_rwlock_wrlock(self.inner.get());
// see comments above for why we check for EDEADLK
if r == libc::EDEADLK {
panic!("rwlock write lock would result in deadlock");
}
#[inline]
pub unsafe fn try_write(&self) -> bool {
- ffi::pthread_rwlock_trywrlock(self.inner.get()) == 0
+ libc::pthread_rwlock_trywrlock(self.inner.get()) == 0
}
#[inline]
pub unsafe fn read_unlock(&self) {
- let r = ffi::pthread_rwlock_unlock(self.inner.get());
+ let r = libc::pthread_rwlock_unlock(self.inner.get());
debug_assert_eq!(r, 0);
}
#[inline]
pub unsafe fn write_unlock(&self) { self.read_unlock() }
#[inline]
pub unsafe fn destroy(&self) {
- let r = ffi::pthread_rwlock_destroy(self.inner.get());
+ let r = libc::pthread_rwlock_destroy(self.inner.get());
// On DragonFly pthread_rwlock_destroy() returns EINVAL if called on a
// rwlock that was just initialized with
- // ffi::PTHREAD_RWLOCK_INITIALIZER. Once it is used (locked/unlocked)
+ // libc::PTHREAD_RWLOCK_INITIALIZER. Once it is used (locked/unlocked)
// or pthread_rwlock_init() is called, this behaviour no longer occurs.
if cfg!(target_os = "dragonfly") {
debug_assert!(r == 0 || r == libc::EINVAL);