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    use crate::loom::sync::atomic::AtomicBool;

    use std::cell::UnsafeCell;
    use std::marker::PhantomData;
    use std::ops::{Deref, DerefMut};
    use std::sync::atomic::Ordering::SeqCst;

    pub(crate) struct TryLock<T> {
        locked: AtomicBool,
        data: UnsafeCell<T>,
    }

    pub(crate) struct LockGuard<'a, T> {
        lock: &'a TryLock<T>,
        _p: PhantomData<std::rc::Rc<()>>,
    }

    unsafe impl<T: Send> Send for TryLock<T> {}
    unsafe impl<T: Send> Sync for TryLock<T> {}

    unsafe impl<T: Sync> Sync for LockGuard<'_, T> {}

    macro_rules! new {
        ($data:ident) => {
            TryLock {
                locked: AtomicBool::new(false),
                data: UnsafeCell::new($data),
            }
        };
    }

    impl<T> TryLock<T> {
        #[cfg(not(loom))]
        /// Create a new `TryLock`
        pub(crate) const fn new(data: T) -> TryLock<T> {
            new!(data)
        }

        #[cfg(loom)]
        /// Create a new `TryLock`
        pub(crate) fn new(data: T) -> TryLock<T> {
            new!(data)
        }

        /// Attempt to acquire lock
        pub(crate) fn try_lock(&self) -> Option<LockGuard<'_, T>> {
            if self
                .locked
                .compare_exchange(false, true, SeqCst, SeqCst)
                .is_err()
            {
                return None;
            }

            Some(LockGuard {
                lock: self,
                _p: PhantomData,
            })
        }
    }

    impl<T> Deref for LockGuard<'_, T> {
        type Target = T;

        fn deref(&self) -> &T {
            unsafe { &*self.lock.data.get() }
        }
    }

    impl<T> DerefMut for LockGuard<'_, T> {
        fn deref_mut(&mut self) -> &mut T {
            unsafe { &mut *self.lock.data.get() }
        }
    }

    impl<T> Drop for LockGuard<'_, T> {
        fn drop(&mut self) {
            self.lock.locked.store(false, SeqCst);
        }
    }