Struct futures_util::future::WeakShared [−][src]
A weak reference to a Shared that can be upgraded much like an Arc.
Implementations
impl<Fut: Future> WeakShared<Fut>[src]
pub fn upgrade(&self) -> Option<Shared<Fut>>[src]
Attempts to upgrade this WeakShared into a Shared.
Returns None if all clones of the Shared have been dropped or polled
to completion.
Trait Implementations
Auto Trait Implementations
impl<Fut> !RefUnwindSafe for WeakShared<Fut>
impl<Fut> Send for WeakShared<Fut> where
Fut: Send,
<Fut as Future>::Output: Send + Sync,
Fut: Send,
<Fut as Future>::Output: Send + Sync,
impl<Fut> Sync for WeakShared<Fut> where
Fut: Send,
<Fut as Future>::Output: Send + Sync,
Fut: Send,
<Fut as Future>::Output: Send + Sync,
impl<Fut> Unpin for WeakShared<Fut>
impl<Fut> !UnwindSafe for WeakShared<Fut>
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized, [src]
T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized, [src]
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized, [src]
T: ?Sized,
pub fn borrow_mut(&mut self) -> &mut T[src]
impl<T> From<T> for T[src]
impl<T, U> Into<U> for T where
U: From<T>, [src]
U: From<T>,
impl<T, U> TryFrom<U> for T where
U: Into<T>, [src]
U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>[src]
impl<T, U> TryInto<U> for T where
U: TryFrom<T>, [src]
U: TryFrom<T>,