Struct spin::RwLockWriteGuard

pub struct RwLockWriteGuard<'a, T: 'a + ?Sized> { /* fields omitted */ }

A guard to which the protected data can be written

When the guard falls out of scope it will release the lock.

Methods

impl<'rwlock, T: ?Sized> RwLockWriteGuard<'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

impl<'rwlock, T: ?Sized> DerefMut for RwLockWriteGuard<'rwlock, T>

fn deref_mut(&mut self) -> &mut T

Mutably dereferences the value.

impl<'rwlock, T: ?Sized> Deref for RwLockWriteGuard<'rwlock, T>

type Target = T

The resulting type after dereferencing.

fn deref(&self) -> &T

Dereferences the value.

impl<'a, T: Debug + 'a + ?Sized> Debug for RwLockWriteGuard<'a, T>

fn fmt(&self, f: &mut Formatter) -> Result

Formats the value using the given formatter.

impl<'rwlock, T: ?Sized> Drop for RwLockWriteGuard<'rwlock, T>

fn drop(&mut self)

Executes the destructor for this type.