reactor_cache

Struct LoadHandle

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pub struct LoadHandle<F: Future, V, E> { /* private fields */ }

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impl<F, V, E: Clone> Future for LoadHandle<F, V, E>
where F: Future<Item = V, Error = E>,

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type Item = Arc<V>

The type of value that this future will resolved with if it is successful.
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type Error = E

The type of error that this future will resolve with if it fails in a normal fashion.
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fn poll(&mut self) -> Poll<Self::Item, Self::Error>

Query this future to see if its value has become available, registering interest if it is not. Read more
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fn wait(self) -> Result<Self::Item, Self::Error>
where Self: Sized,

Block the current thread until this future is resolved. Read more
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fn map<F, U>(self, f: F) -> Map<Self, F>
where F: FnOnce(Self::Item) -> U, Self: Sized,

Map this future’s result to a different type, returning a new future of the resulting type. Read more
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fn map_err<F, E>(self, f: F) -> MapErr<Self, F>
where F: FnOnce(Self::Error) -> E, Self: Sized,

Map this future’s error to a different error, returning a new future. Read more
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fn from_err<E>(self) -> FromErr<Self, E>
where E: From<Self::Error>, Self: Sized,

Map this future’s error to any error implementing From for this future’s Error, returning a new future. Read more
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fn then<F, B>(self, f: F) -> Then<Self, B, F>
where F: FnOnce(Result<Self::Item, Self::Error>) -> B, B: IntoFuture, Self: Sized,

Chain on a computation for when a future finished, passing the result of the future to the provided closure f. Read more
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fn and_then<F, B>(self, f: F) -> AndThen<Self, B, F>
where F: FnOnce(Self::Item) -> B, B: IntoFuture<Error = Self::Error>, Self: Sized,

Execute another future after this one has resolved successfully. Read more
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fn or_else<F, B>(self, f: F) -> OrElse<Self, B, F>
where F: FnOnce(Self::Error) -> B, B: IntoFuture<Item = Self::Item>, Self: Sized,

Execute another future if this one resolves with an error. Read more
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fn select<B>(self, other: B) -> Select<Self, <B as IntoFuture>::Future>
where B: IntoFuture<Item = Self::Item, Error = Self::Error>, Self: Sized,

Waits for either one of two futures to complete. Read more
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fn select2<B>(self, other: B) -> Select2<Self, <B as IntoFuture>::Future>
where B: IntoFuture, Self: Sized,

Waits for either one of two differently-typed futures to complete. Read more
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fn join<B>(self, other: B) -> Join<Self, <B as IntoFuture>::Future>
where B: IntoFuture<Error = Self::Error>, Self: Sized,

Joins the result of two futures, waiting for them both to complete. Read more
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fn join3<B, C>( self, b: B, c: C, ) -> Join3<Self, <B as IntoFuture>::Future, <C as IntoFuture>::Future>
where B: IntoFuture<Error = Self::Error>, C: IntoFuture<Error = Self::Error>, Self: Sized,

Same as join, but with more futures.
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fn join4<B, C, D>( self, b: B, c: C, d: D, ) -> Join4<Self, <B as IntoFuture>::Future, <C as IntoFuture>::Future, <D as IntoFuture>::Future>
where B: IntoFuture<Error = Self::Error>, C: IntoFuture<Error = Self::Error>, D: IntoFuture<Error = Self::Error>, Self: Sized,

Same as join, but with more futures.
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fn join5<B, C, D, E>( self, b: B, c: C, d: D, e: E, ) -> Join5<Self, <B as IntoFuture>::Future, <C as IntoFuture>::Future, <D as IntoFuture>::Future, <E as IntoFuture>::Future>
where B: IntoFuture<Error = Self::Error>, C: IntoFuture<Error = Self::Error>, D: IntoFuture<Error = Self::Error>, E: IntoFuture<Error = Self::Error>, Self: Sized,

Same as join, but with more futures.
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fn into_stream(self) -> IntoStream<Self>
where Self: Sized,

Convert this future into a single element stream. Read more
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fn flatten(self) -> Flatten<Self>
where Self::Item: IntoFuture, <Self::Item as IntoFuture>::Error: From<Self::Error>, Self: Sized,

Flatten the execution of this future when the successful result of this future is itself another future. Read more
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fn flatten_stream(self) -> FlattenStream<Self>
where Self::Item: Stream<Error = Self::Error>, Self: Sized,

Flatten the execution of this future when the successful result of this future is a stream. Read more
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fn fuse(self) -> Fuse<Self>
where Self: Sized,

Fuse a future such that poll will never again be called once it has completed. Read more
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fn inspect<F>(self, f: F) -> Inspect<Self, F>
where F: FnOnce(&Self::Item), Self: Sized,

Do something with the item of a future, passing it on. Read more
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fn catch_unwind(self) -> CatchUnwind<Self>
where Self: Sized + UnwindSafe,

Catches unwinding panics while polling the future. Read more
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fn shared(self) -> Shared<Self>
where Self: Sized,

Create a cloneable handle to this future where all handles will resolve to the same result. Read more

Auto Trait Implementations§

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impl<F, V, E> Freeze for LoadHandle<F, V, E>
where F: Freeze,

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impl<F, V, E> !RefUnwindSafe for LoadHandle<F, V, E>

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impl<F, V, E> Send for LoadHandle<F, V, E>
where F: Send, E: Send, V: Sync + Send,

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impl<F, V, E> Sync for LoadHandle<F, V, E>
where F: Sync, E: Send, V: Sync + Send,

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impl<F, V, E> Unpin for LoadHandle<F, V, E>
where F: Unpin,

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impl<F, V, E> !UnwindSafe for LoadHandle<F, V, E>

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> FutureExt for T
where T: Future + ?Sized,

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fn timeout(self, timeout: Duration) -> Timeout<Self>
where Self: Sized,

Creates a new future which allows self until timeout. Read more
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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<F> IntoFuture for F
where F: Future,

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type Future = F

The future that this type can be converted into.
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type Item = <F as Future>::Item

The item that the future may resolve with.
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type Error = <F as Future>::Error

The error that the future may resolve with.
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fn into_future(self) -> F

Consumes this object and produces a future.
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.