Struct lair_keystore::dependencies::futures::lock::MutexGuard
[−]pub struct MutexGuard<'a, T> where
T: ?Sized, { /* private fields */ }
Expand description
An RAII guard returned by the lock
and try_lock
methods.
When this structure is dropped (falls out of scope), the lock will be
unlocked.
Implementations
impl<'a, T> MutexGuard<'a, T> where
T: ?Sized,
impl<'a, T> MutexGuard<'a, T> where
T: ?Sized,
pub fn map<U, F>(this: MutexGuard<'a, T>, f: F) -> MappedMutexGuard<'a, T, U> where
F: FnOnce(&mut T) -> &mut U,
U: ?Sized,
pub fn map<U, F>(this: MutexGuard<'a, T>, f: F) -> MappedMutexGuard<'a, T, U> where
F: FnOnce(&mut T) -> &mut U,
U: ?Sized,
Returns a locked view over a portion of the locked data.
Example
use futures::lock::{Mutex, MutexGuard};
let data = Mutex::new(Some("value".to_string()));
{
let locked_str = MutexGuard::map(data.lock().await, |opt| opt.as_mut().unwrap());
assert_eq!(&*locked_str, "value");
}
Trait Implementations
impl<'_, T> Debug for MutexGuard<'_, T> where
T: Debug + ?Sized,
impl<'_, T> Debug for MutexGuard<'_, T> where
T: Debug + ?Sized,
impl<'_, T> Deref for MutexGuard<'_, T> where
T: ?Sized,
impl<'_, T> Deref for MutexGuard<'_, T> where
T: ?Sized,
impl<'_, T> DerefMut for MutexGuard<'_, T> where
T: ?Sized,
impl<'_, T> DerefMut for MutexGuard<'_, T> where
T: ?Sized,
impl<'_, T> Drop for MutexGuard<'_, T> where
T: ?Sized,
impl<'_, T> Drop for MutexGuard<'_, T> where
T: ?Sized,
impl<'_, T> Send for MutexGuard<'_, T> where
T: Send + ?Sized,
impl<'_, T> Sync for MutexGuard<'_, T> where
T: Sync + ?Sized,
Auto Trait Implementations
impl<'a, T> !RefUnwindSafe for MutexGuard<'a, T>
impl<'a, T: ?Sized> Unpin for MutexGuard<'a, T>
impl<'a, T> !UnwindSafe for MutexGuard<'a, T>
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