Struct tokio_util::sync::ReusableBoxFuture [−][src]
A reusable Pin<Box<dyn Future<Output = T> + Send>>.
This type lets you replace the future stored in the box without reallocating when the size and alignment permits this.
Implementations
impl<T> ReusableBoxFuture<T>[src]
pub fn new<F>(future: F) -> Self where
F: Future<Output = T> + Send + 'static, [src]
F: Future<Output = T> + Send + 'static,
Create a new ReusableBoxFuture<T> containing the provided future.
pub fn set<F>(&mut self, future: F) where
F: Future<Output = T> + Send + 'static, [src]
F: Future<Output = T> + Send + 'static,
Replace the future currently stored in this box.
This reallocates if and only if the layout of the provided future is different from the layout of the currently stored future.
pub fn try_set<F>(&mut self, future: F) -> Result<(), F> where
F: Future<Output = T> + Send + 'static, [src]
F: Future<Output = T> + Send + 'static,
Replace the future currently stored in this box.
This function never reallocates, but returns an error if the provided future has a different size or alignment from the currently stored future.
pub fn get_pin(&mut self) -> Pin<&mut (dyn Future<Output = T> + Send)>[src]
Get a pinned reference to the underlying future.
pub fn poll(&mut self, cx: &mut Context<'_>) -> Poll<T>[src]
Poll the future stored inside this box.
Trait Implementations
impl<T> Debug for ReusableBoxFuture<T>[src]
impl<T> Drop for ReusableBoxFuture<T>[src]
impl<T> Future for ReusableBoxFuture<T>[src]
type Output = T
The type of value produced on completion.
fn poll(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<T>[src]
Poll the future stored inside this box.
impl<T> Send for ReusableBoxFuture<T>[src]
impl<T> Sync for ReusableBoxFuture<T>[src]
impl<T> Unpin for ReusableBoxFuture<T>[src]
Auto Trait Implementations
impl<T> !RefUnwindSafe for ReusableBoxFuture<T>[src]
impl<T> !UnwindSafe for ReusableBoxFuture<T>[src]
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> FutureExt for T where
T: Future + ?Sized, [src]
T: Future + ?Sized,
pub fn map<U, F>(self, f: F) -> Map<Self, F> where
F: FnOnce(Self::Output) -> U, [src]
F: FnOnce(Self::Output) -> U,
pub fn map_into<U>(self) -> MapInto<Self, U> where
Self::Output: Into<U>, [src]
Self::Output: Into<U>,
pub fn then<Fut, F>(self, f: F) -> Then<Self, Fut, F> where
F: FnOnce(Self::Output) -> Fut,
Fut: Future, [src]
F: FnOnce(Self::Output) -> Fut,
Fut: Future,
pub fn left_future<B>(self) -> Either<Self, B> where
B: Future<Output = Self::Output>, [src]
B: Future<Output = Self::Output>,
pub fn right_future<A>(self) -> Either<A, Self> where
A: Future<Output = Self::Output>, [src]
A: Future<Output = Self::Output>,
pub fn into_stream(self) -> IntoStream<Self>[src]
pub fn flatten(self) -> Flatten<Self> where
Self::Output: Future, [src]
Self::Output: Future,
pub fn flatten_stream(self) -> FlattenStream<Self> where
Self::Output: Stream, [src]
Self::Output: Stream,
pub fn fuse(self) -> Fuse<Self>[src]
pub fn inspect<F>(self, f: F) -> Inspect<Self, F> where
F: FnOnce(&Self::Output), [src]
F: FnOnce(&Self::Output),
pub fn catch_unwind(self) -> CatchUnwind<Self> where
Self: UnwindSafe, [src]
Self: UnwindSafe,
pub fn shared(self) -> Shared<Self> where
Self::Output: Clone, [src]
Self::Output: Clone,
pub fn remote_handle(self) -> (Remote<Self>, RemoteHandle<Self::Output>)[src]
pub fn boxed<'a>(
self
) -> Pin<Box<dyn Future<Output = Self::Output> + 'a + Send, Global>> where
Self: Send + 'a, [src]
self
) -> Pin<Box<dyn Future<Output = Self::Output> + 'a + Send, Global>> where
Self: Send + 'a,
pub fn boxed_local<'a>(
self
) -> Pin<Box<dyn Future<Output = Self::Output> + 'a, Global>> where
Self: 'a, [src]
self
) -> Pin<Box<dyn Future<Output = Self::Output> + 'a, Global>> where
Self: 'a,
pub fn unit_error(self) -> UnitError<Self>[src]
pub fn never_error(self) -> NeverError<Self>[src]
pub fn poll_unpin(&mut self, cx: &mut Context<'_>) -> Poll<Self::Output> where
Self: Unpin, [src]
Self: Unpin,
pub fn now_or_never(self) -> Option<Self::Output>[src]
impl<T, U> Into<U> for T where
U: From<T>, [src]
U: From<T>,
impl<F> IntoFuture for F where
F: Future, [src]
F: Future,
type Output = <F as Future>::Output
🔬 This is a nightly-only experimental API. (
into_future)The output that the future will produce on completion.
type Future = F
🔬 This is a nightly-only experimental API. (
into_future)Which kind of future are we turning this into?
pub fn into_future(self) -> <F as IntoFuture>::Future[src]
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<F, T, E> TryFuture for F where
F: Future<Output = Result<T, E>> + ?Sized, [src]
F: Future<Output = Result<T, E>> + ?Sized,
type Ok = T
The type of successful values yielded by this future
type Error = E
The type of failures yielded by this future
pub fn try_poll(
self: Pin<&mut F>,
cx: &mut Context<'_>
) -> Poll<<F as Future>::Output>[src]
self: Pin<&mut F>,
cx: &mut Context<'_>
) -> Poll<<F as Future>::Output>
impl<Fut> TryFutureExt for Fut where
Fut: TryFuture + ?Sized, [src]
Fut: TryFuture + ?Sized,
pub fn flatten_sink<Item>(self) -> FlattenSink<Self, Self::Ok> where
Self::Ok: Sink<Item>,
<Self::Ok as Sink<Item>>::Error == Self::Error, [src]
Self::Ok: Sink<Item>,
<Self::Ok as Sink<Item>>::Error == Self::Error,
pub fn map_ok<T, F>(self, f: F) -> MapOk<Self, F> where
F: FnOnce(Self::Ok) -> T, [src]
F: FnOnce(Self::Ok) -> T,
pub fn map_ok_or_else<T, E, F>(self, e: E, f: F) -> MapOkOrElse<Self, F, E> where
F: FnOnce(Self::Ok) -> T,
E: FnOnce(Self::Error) -> T, [src]
F: FnOnce(Self::Ok) -> T,
E: FnOnce(Self::Error) -> T,
pub fn map_err<E, F>(self, f: F) -> MapErr<Self, F> where
F: FnOnce(Self::Error) -> E, [src]
F: FnOnce(Self::Error) -> E,
pub fn err_into<E>(self) -> ErrInto<Self, E> where
Self::Error: Into<E>, [src]
Self::Error: Into<E>,
pub fn ok_into<U>(self) -> OkInto<Self, U> where
Self::Ok: Into<U>, [src]
Self::Ok: Into<U>,
pub fn and_then<Fut, F>(self, f: F) -> AndThen<Self, Fut, F> where
F: FnOnce(Self::Ok) -> Fut,
Fut: TryFuture<Error = Self::Error>, [src]
F: FnOnce(Self::Ok) -> Fut,
Fut: TryFuture<Error = Self::Error>,
pub fn or_else<Fut, F>(self, f: F) -> OrElse<Self, Fut, F> where
F: FnOnce(Self::Error) -> Fut,
Fut: TryFuture<Ok = Self::Ok>, [src]
F: FnOnce(Self::Error) -> Fut,
Fut: TryFuture<Ok = Self::Ok>,
pub fn inspect_ok<F>(self, f: F) -> InspectOk<Self, F> where
F: FnOnce(&Self::Ok), [src]
F: FnOnce(&Self::Ok),
pub fn inspect_err<F>(self, f: F) -> InspectErr<Self, F> where
F: FnOnce(&Self::Error), [src]
F: FnOnce(&Self::Error),
pub fn try_flatten(self) -> TryFlatten<Self, Self::Ok> where
Self::Ok: TryFuture,
<Self::Ok as TryFuture>::Error == Self::Error, [src]
Self::Ok: TryFuture,
<Self::Ok as TryFuture>::Error == Self::Error,
pub fn try_flatten_stream(self) -> TryFlattenStream<Self> where
Self::Ok: TryStream,
<Self::Ok as TryStream>::Error == Self::Error, [src]
Self::Ok: TryStream,
<Self::Ok as TryStream>::Error == Self::Error,
pub fn unwrap_or_else<F>(self, f: F) -> UnwrapOrElse<Self, F> where
F: FnOnce(Self::Error) -> Self::Ok, [src]
F: FnOnce(Self::Error) -> Self::Ok,
pub fn into_future(self) -> IntoFuture<Self>[src]
pub fn try_poll_unpin(
&mut self,
cx: &mut Context<'_>
) -> Poll<Result<Self::Ok, Self::Error>> where
Self: Unpin, [src]
&mut self,
cx: &mut Context<'_>
) -> Poll<Result<Self::Ok, Self::Error>> where
Self: Unpin,
impl<T, U> TryInto<U> for T where
U: TryFrom<T>, [src]
U: TryFrom<T>,