Struct spin::RwLockWriteGuard
source · pub struct RwLockWriteGuard<'a, T: 'a + ?Sized> { /* private fields */ }
Expand description
A guard to which the protected data can be written
When the guard falls out of scope it will release the lock.
Implementations§
source§impl<'rwlock, T: ?Sized> RwLockWriteGuard<'rwlock, T>
impl<'rwlock, T: ?Sized> RwLockWriteGuard<'rwlock, T>
sourcepub fn downgrade(self) -> RwLockReadGuard<'rwlock, T>
pub fn downgrade(self) -> RwLockReadGuard<'rwlock, T>
Downgrades the writable lock guard to a readable, shared lock guard. Cannot fail and is guaranteed not to spin.
let mylock = spin::RwLock::new(0);
let mut writable = mylock.write();
*writable = 1;
let readable = writable.downgrade(); // This is guaranteed not to spin
assert_eq!(*readable, 1);
Trait Implementations§
source§impl<'rwlock, T: ?Sized> Deref for RwLockWriteGuard<'rwlock, T>
impl<'rwlock, T: ?Sized> Deref for RwLockWriteGuard<'rwlock, T>
source§impl<'rwlock, T: ?Sized> DerefMut for RwLockWriteGuard<'rwlock, T>
impl<'rwlock, T: ?Sized> DerefMut for RwLockWriteGuard<'rwlock, T>
Auto Trait Implementations§
impl<'a, T: ?Sized> RefUnwindSafe for RwLockWriteGuard<'a, T>where T: RefUnwindSafe,
impl<'a, T> !Send for RwLockWriteGuard<'a, T>
impl<'a, T> !Sync for RwLockWriteGuard<'a, T>
impl<'a, T: ?Sized> Unpin for RwLockWriteGuard<'a, T>
impl<'a, T> !UnwindSafe for RwLockWriteGuard<'a, T>
Blanket Implementations§
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more