Struct lair_keystore::dependencies::hc_seed_bundle::dependencies::futures::lock::Mutex
[−]pub struct Mutex<T> where
T: ?Sized, { /* private fields */ }
Expand description
A futures-aware mutex.
Fairness
This mutex provides no fairness guarantees. Tasks may not acquire the mutex in the order that they requested the lock, and it’s possible for a single task which repeatedly takes the lock to starve other tasks, which may be left waiting indefinitely.
Implementations
impl<T> Mutex<T>
impl<T> Mutex<T>
pub fn into_inner(self) -> T
pub fn into_inner(self) -> T
Consumes this mutex, returning the underlying data.
Examples
use futures::lock::Mutex;
let mutex = Mutex::new(0);
assert_eq!(mutex.into_inner(), 0);
impl<T> Mutex<T> where
T: ?Sized,
impl<T> Mutex<T> where
T: ?Sized,
pub fn try_lock(&self) -> Option<MutexGuard<'_, T>>
pub fn try_lock(&self) -> Option<MutexGuard<'_, T>>
Attempt to acquire the lock immediately.
If the lock is currently held, this will return None
.
pub fn lock(&self) -> MutexLockFuture<'_, T>ⓘNotable traits for MutexLockFuture<'a, T>impl<'a, T> Future for MutexLockFuture<'a, T> where
T: ?Sized, type Output = MutexGuard<'a, T>;
pub fn lock(&self) -> MutexLockFuture<'_, T>ⓘNotable traits for MutexLockFuture<'a, T>impl<'a, T> Future for MutexLockFuture<'a, T> where
T: ?Sized, type Output = MutexGuard<'a, T>;
T: ?Sized, type Output = MutexGuard<'a, T>;
Acquire the lock asynchronously.
This method returns a future that will resolve once the lock has been successfully acquired.
pub fn get_mut(&mut self) -> &mut T
pub fn get_mut(&mut self) -> &mut T
Returns a mutable reference to the underlying data.
Since this call borrows the Mutex
mutably, no actual locking needs to
take place – the mutable borrow statically guarantees no locks exist.
Examples
use futures::lock::Mutex;
let mut mutex = Mutex::new(0);
*mutex.get_mut() = 10;
assert_eq!(*mutex.lock().await, 10);
Trait Implementations
impl<T> Send for Mutex<T> where
T: Send + ?Sized,
impl<T> Sync for Mutex<T> where
T: Send + ?Sized,
Auto Trait Implementations
impl<T> !RefUnwindSafe for Mutex<T>
impl<T: ?Sized> Unpin for Mutex<T> where
T: Unpin,
impl<T: ?Sized> UnwindSafe for Mutex<T> where
T: UnwindSafe,
Blanket Implementations
sourceimpl<T> BorrowMut<T> for T where
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
sourceimpl<T> Instrument for T
impl<T> Instrument for T
sourcefn instrument(self, span: Span) -> Instrumented<Self>ⓘNotable traits for Instrumented<T>impl<T> Future for Instrumented<T> where
T: Future, type Output = <T as Future>::Output;
fn instrument(self, span: Span) -> Instrumented<Self>ⓘNotable traits for Instrumented<T>impl<T> Future for Instrumented<T> where
T: Future, type Output = <T as Future>::Output;
T: Future, type Output = <T as Future>::Output;
sourcefn in_current_span(self) -> Instrumented<Self>ⓘNotable traits for Instrumented<T>impl<T> Future for Instrumented<T> where
T: Future, type Output = <T as Future>::Output;
fn in_current_span(self) -> Instrumented<Self>ⓘNotable traits for Instrumented<T>impl<T> Future for Instrumented<T> where
T: Future, type Output = <T as Future>::Output;
T: Future, type Output = <T as Future>::Output;
impl<T> Pointable for T
impl<T> Pointable for T
impl<V, T> VZip<V> for T where
V: MultiLane<T>,
impl<V, T> VZip<V> for T where
V: MultiLane<T>,
fn vzip(self) -> V
sourceimpl<T> WithSubscriber for T
impl<T> WithSubscriber for T
sourcefn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>ⓘNotable traits for WithDispatch<T>impl<T> Future for WithDispatch<T> where
T: Future, type Output = <T as Future>::Output;
where
S: Into<Dispatch>,
fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>ⓘNotable traits for WithDispatch<T>impl<T> Future for WithDispatch<T> where
T: Future, type Output = <T as Future>::Output;
where
S: Into<Dispatch>,
T: Future, type Output = <T as Future>::Output;
Attaches the provided Subscriber
to this type, returning a
WithDispatch
wrapper. Read more
sourcefn with_current_subscriber(self) -> WithDispatch<Self>ⓘNotable traits for WithDispatch<T>impl<T> Future for WithDispatch<T> where
T: Future, type Output = <T as Future>::Output;
fn with_current_subscriber(self) -> WithDispatch<Self>ⓘNotable traits for WithDispatch<T>impl<T> Future for WithDispatch<T> where
T: Future, type Output = <T as Future>::Output;
T: Future, type Output = <T as Future>::Output;
Attaches the current default Subscriber
to this type, returning a
WithDispatch
wrapper. Read more