[−][src]Trait futures_core::future::FusedFuture

[+] Show declaration

pub trait FusedFuture {
    fn is_terminated(&self) -> bool;
}

A Future or TryFuture which tracks whether or not the underlying future should no longer be polled.

is_terminated will return true if a future should no longer be polled. Usually, this state occurs after poll (or try_poll) returned Poll::Ready. However, is_terminated may also return true if a future has become inactive and can no longer make progress and should be ignored or dropped rather than being polled again.

Required methods

`fn is_terminated(&self) -> bool`[+]

Returns true if the underlying future should no longer be polled.

Implementations on Foreign Types

`impl<F: FusedFuture + ?Sized, '_> FusedFuture for &'_ mut F`[src][−]

[+] Show hidden undocumented items

`fn is_terminated(&self) -> bool`[src]

`impl<P> FusedFuture for Pin<P> where P: DerefMut + Unpin, P::Target: FusedFuture,` [src][−]

[+] Show hidden undocumented items

`fn is_terminated(&self) -> bool`[src]

`impl<F: FusedFuture + ?Sized> FusedFuture for Box<F>`[src][−]

[+] Show hidden undocumented items

`fn is_terminated(&self) -> bool`[src]

`impl<F: FusedFuture> FusedFuture for AssertUnwindSafe<F>`[src][−]

[+] Show hidden undocumented items

`fn is_terminated(&self) -> bool`[src]

Implementors

`impl<Fut: Future + FusedFuture> FusedFuture for PendingOnce<Fut>`

`impl<T> FusedFuture for Empty<T>`

`impl<F> FusedFuture for Lazy<F>`

`impl<Fut: Future> FusedFuture for MaybeDone<Fut>`

`impl<T> FusedFuture for Ready<T>`

`impl<Fut> FusedFuture for Flatten<Fut> where Fut: Future, Fut::Output: Future,`

`impl<Fut: Future> FusedFuture for Fuse<Fut>`

`impl<Fut, F> FusedFuture for Map<Fut, F>`

`impl<Fut1, Fut2, F> FusedFuture for Then<Fut1, Fut2, F>`

`impl<Fut: Future + FusedFuture, F> FusedFuture for Inspect<Fut, F>`

`impl<Fut: FusedFuture> FusedFuture for UnitError<Fut>`

`impl<Fut: FusedFuture> FusedFuture for NeverError<Fut>`

`impl<Fut: Future> FusedFuture for Shared<Fut>`

`impl<Fut1, Fut2, F> FusedFuture for AndThen<Fut1, Fut2, F> where Fut1: TryFuture, Fut2: TryFuture<Error = Fut1::Error>, F: FnOnce(Fut1::Ok) -> Fut2,`

`impl<Fut: FusedFuture, E> FusedFuture for ErrInto<Fut, E>`

`impl<Fut: FusedFuture> FusedFuture for IntoFuture<Fut>`

`impl<Fut, F> FusedFuture for MapErr<Fut, F>`

`impl<Fut, F> FusedFuture for MapOk<Fut, F>`

`impl<Fut1, Fut2, F> FusedFuture for OrElse<Fut1, Fut2, F> where Fut1: TryFuture, Fut2: TryFuture<Ok = Fut1::Ok>, F: FnOnce(Fut1::Error) -> Fut2,`

`impl<Fut, F> FusedFuture for UnwrapOrElse<Fut, F>`

`impl<St: FusedStream, C> FusedFuture for Collect<St, C>`

`impl<St, Fut, T, F> FusedFuture for Fold<St, Fut, T, F>`

`impl<St: TryStream, Si: Sink<St::Ok> + Unpin> FusedFuture for Forward<St, Si>`

`impl<St: FusedStream, Fut, F> FusedFuture for ForEach<St, Fut, F>`

`impl<St> FusedFuture for StreamFuture<St>`

`impl<St: FusedStream, '_> FusedFuture for Next<'_, St>`

`impl<St: FusedStream, '_> FusedFuture for SelectNextSome<'_, St>`

`impl<St, Fut, F> FusedFuture for ForEachConcurrent<St, Fut, F>`

`impl<St: Unpin + FusedStream, '_> FusedFuture for TryNext<'_, St>`

`impl<St: FusedStream, C> FusedFuture for TryCollect<St, C>`

`impl<St, Fut, T, F> FusedFuture for TryFold<St, Fut, T, F>`

`impl<St, Fut, F> FusedFuture for TryForEachConcurrent<St, Fut, F>`

`impl<T, '_> FusedFuture for MutexLockFuture<'_, T>`