106 pub struct Lock<T: ?Sized, B: Backend> {
109     state: Opaque<B::State>,
123 unsafe impl<T: ?Sized + Send, B: Backend> Send for Lock<T, B> {}
127 unsafe impl<T: ?Sized + Send, B: Backend> Sync for Lock<T, B> {}
129 impl<T, B: Backend> Lock<T, B> {
142                 B::init(slot, name.as_char_ptr(), key.as_ptr())  in new()
148 impl<B: Backend> Lock<(), B> {
159     pub unsafe fn from_raw<'a>(ptr: *mut B::State) -> &'a Self {  in from_raw()
170 impl<T: ?Sized, B: Backend> Lock<T, B> {
172     pub fn lock(&self) -> Guard<'_, T, B> {  in lock()  argument
175         let state = unsafe { B::lock(self.state.get()) };  in lock()
185     pub fn try_lock(&self) -> Option<Guard<'_, T, B>> {  in try_lock()  argument
188         unsafe { B::try_lock(self.state.get()).map(|state| Guard::new(self, state)) }  in try_lock()
198 pub struct Guard<'a, T: ?Sized, B: Backend> {
199     pub(crate) lock: &'a Lock<T, B>,
200     pub(crate) state: B::GuardState,
205 unsafe impl<T: Sync + ?Sized, B: Backend> Sync for Guard<'_, T, B> {}
207 impl<'a, T: ?Sized, B: Backend> Guard<'a, T, B> {
234     pub fn lock_ref(&self) -> &'a Lock<T, B> {  in lock_ref()  argument
240         unsafe { B::unlock(self.lock.state.get(), &self.state) };  in do_unlocked()
244                 unsafe { B::relock(self.lock.state.get(), &mut self.state) });  in do_unlocked()
275 impl<T: ?Sized, B: Backend> core::ops::Deref for Guard<'_, T, B> {
284 impl<T: ?Sized, B: Backend> core::ops::DerefMut for Guard<'_, T, B>
294 impl<T: ?Sized, B: Backend> Drop for Guard<'_, T, B> {
297         unsafe { B::unlock(self.lock.state.get(), &self.state) };  in drop()
301 impl<'a, T: ?Sized, B: Backend> Guard<'a, T, B> {
307     pub unsafe fn new(lock: &'a Lock<T, B>, state: B::GuardState) -> Self {  in new()  argument
309         unsafe { B::assert_is_held(lock.state.get()) };  in new()