+++ /dev/null
-pub use ::alloc::sync::Arc;
-use core::ops::{Deref, DerefMut};
-use core::time::Duration;
-use core::cell::{RefCell, Ref, RefMut};
-
-pub type LockResult<Guard> = Result<Guard, ()>;
-
-pub struct Condvar {}
-
-impl Condvar {
- pub fn new() -> Condvar {
- Condvar { }
- }
-
- pub fn wait<'a, T>(&'a self, guard: MutexGuard<'a, T>) -> LockResult<MutexGuard<'a, T>> {
- Ok(guard)
- }
-
- #[allow(unused)]
- pub fn wait_timeout<'a, T>(&'a self, guard: MutexGuard<'a, T>, _dur: Duration) -> LockResult<(MutexGuard<'a, T>, ())> {
- Ok((guard, ()))
- }
-
- pub fn notify_all(&self) {}
-}
-
-pub struct Mutex<T: ?Sized> {
- inner: RefCell<T>
-}
-
-#[must_use = "if unused the Mutex will immediately unlock"]
-pub struct MutexGuard<'a, T: ?Sized + 'a> {
- lock: RefMut<'a, T>,
-}
-
-impl<T: ?Sized> Deref for MutexGuard<'_, T> {
- type Target = T;
-
- fn deref(&self) -> &T {
- &self.lock.deref()
- }
-}
-
-impl<T: ?Sized> DerefMut for MutexGuard<'_, T> {
- fn deref_mut(&mut self) -> &mut T {
- self.lock.deref_mut()
- }
-}
-
-impl<T> Mutex<T> {
- pub fn new(inner: T) -> Mutex<T> {
- Mutex { inner: RefCell::new(inner) }
- }
-
- pub fn lock<'a>(&'a self) -> LockResult<MutexGuard<'a, T>> {
- Ok(MutexGuard { lock: self.inner.borrow_mut() })
- }
-
- pub fn try_lock<'a>(&'a self) -> LockResult<MutexGuard<'a, T>> {
- Ok(MutexGuard { lock: self.inner.borrow_mut() })
- }
-}
-
-pub struct RwLock<T: ?Sized> {
- inner: RefCell<T>
-}
-
-pub struct RwLockReadGuard<'a, T: ?Sized + 'a> {
- lock: Ref<'a, T>,
-}
-
-pub struct RwLockWriteGuard<'a, T: ?Sized + 'a> {
- lock: RefMut<'a, T>,
-}
-
-impl<T: ?Sized> Deref for RwLockReadGuard<'_, T> {
- type Target = T;
-
- fn deref(&self) -> &T {
- &self.lock.deref()
- }
-}
-
-impl<T: ?Sized> Deref for RwLockWriteGuard<'_, T> {
- type Target = T;
-
- fn deref(&self) -> &T {
- &self.lock.deref()
- }
-}
-
-impl<T: ?Sized> DerefMut for RwLockWriteGuard<'_, T> {
- fn deref_mut(&mut self) -> &mut T {
- self.lock.deref_mut()
- }
-}
-
-impl<T> RwLock<T> {
- pub fn new(inner: T) -> RwLock<T> {
- RwLock { inner: RefCell::new(inner) }
- }
-
- pub fn read<'a>(&'a self) -> LockResult<RwLockReadGuard<'a, T>> {
- Ok(RwLockReadGuard { lock: self.inner.borrow() })
- }
-
- pub fn write<'a>(&'a self) -> LockResult<RwLockWriteGuard<'a, T>> {
- Ok(RwLockWriteGuard { lock: self.inner.borrow_mut() })
- }
-
- pub fn try_write<'a>(&'a self) -> LockResult<RwLockWriteGuard<'a, T>> {
- match self.inner.try_borrow_mut() {
- Ok(lock) => Ok(RwLockWriteGuard { lock }),
- Err(_) => Err(())
- }
- }
-}
-
-pub type FairRwLock<T> = RwLock<T>;