1 use crate::sys::locks::Mutex;
2 use crate::sys_common::lazy_box::{LazyBox, LazyInit};
3 use crate::time::Duration;
5 use super::waitqueue::{SpinMutex, WaitQueue, WaitVariable};
7 /// FIXME: `UnsafeList` is not movable.
8 struct AllocatedCondvar(SpinMutex<WaitVariable<()>>);
11 inner: LazyBox<AllocatedCondvar>,
14 impl LazyInit for AllocatedCondvar {
15 fn init() -> Box<Self> {
16 Box::new(AllocatedCondvar(SpinMutex::new(WaitVariable::new(()))))
21 pub const fn new() -> Condvar {
22 Condvar { inner: LazyBox::new() }
26 pub fn notify_one(&self) {
27 let _ = WaitQueue::notify_one(self.inner.0.lock());
31 pub fn notify_all(&self) {
32 let _ = WaitQueue::notify_all(self.inner.0.lock());
35 pub unsafe fn wait(&self, mutex: &Mutex) {
36 let guard = self.inner.0.lock();
37 WaitQueue::wait(guard, || unsafe { mutex.unlock() });
41 pub unsafe fn wait_timeout(&self, mutex: &Mutex, dur: Duration) -> bool {
42 let success = WaitQueue::wait_timeout(&self.inner.0, dur, || unsafe { mutex.unlock() });