Struct parking_lot::MutexGuard
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[src]
#[must_use]pub struct MutexGuard<'a, T: ?Sized + 'a> { /* fields omitted */ }
An RAII implementation of a "scoped lock" of a mutex. When this structure is dropped (falls out of scope), the lock will be unlocked.
The data protected by the mutex can be accessed through this guard via its
Deref and DerefMut implementations.
Methods
impl<'a, T: ?Sized + 'a> MutexGuard<'a, T>[src]
fn unlock_fair(self)
Unlocks the mutex using a fair unlock protocol.
By default, mutexes are unfair and allow the current thread to re-lock the mutex before another has the chance to acquire the lock, even if that thread has been blocked on the mutex for a long time. This is the default because it allows much higher throughput as it avoids forcing a context switch on every mutex unlock. This can result in one thread acquiring a mutex many more times than other threads.
However in some cases it can be beneficial to ensure fairness by forcing
the lock to pass on to a waiting thread if there is one. This is done by
using this method instead of dropping the MutexGuard normally.
Trait Implementations
impl<'a, T: ?Sized + 'a> Deref for MutexGuard<'a, T>[src]
type Target = T
The resulting type after dereferencing
fn deref(&self) -> &T
The method called to dereference a value
impl<'a, T: ?Sized + 'a> DerefMut for MutexGuard<'a, T>[src]
fn deref_mut(&mut self) -> &mut T
The method called to mutably dereference a value