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tower_util

Struct BoxService

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pub struct BoxService<T, U, E> { /* private fields */ }
Expand description

A boxed Service + Send trait object.

BoxService turns a service into a trait object, allowing the response future type to be dynamic. This type requires both the service and the response future to be Send.

See module level documentation for more details.

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impl<T, U, E> BoxService<T, U, E>

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pub fn new<S>(inner: S) -> Self
where S: Service<T, Response = U, Error = E> + Send + 'static, S::Future: Send + 'static,

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impl<T, U, E> Debug for BoxService<T, U, E>
where T: Debug, U: Debug, E: Debug,

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fn fmt(&self, fmt: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl<T, U, E> Service<T> for BoxService<T, U, E>

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type Response = U

Responses given by the service.
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type Error = E

Errors produced by the service.
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type Future = Pin<Box<dyn Future<Output = Result<U, E>> + Send>>

The future response value.
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fn poll_ready(&mut self, cx: &mut Context<'_>) -> Poll<Result<(), E>>

Returns Poll::Ready(Ok(())) when the service is able to process requests. Read more
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fn call( &mut self, request: T, ) -> Pin<Box<dyn Future<Output = Result<U, E>> + Send>>

Process the request and return the response asynchronously. Read more

Auto Trait Implementations§

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impl<T, U, E> Freeze for BoxService<T, U, E>

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impl<T, U, E> !RefUnwindSafe for BoxService<T, U, E>

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impl<T, U, E> Send for BoxService<T, U, E>

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impl<T, U, E> !Sync for BoxService<T, U, E>

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impl<T, U, E> Unpin for BoxService<T, U, E>

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impl<T, U, E> !UnwindSafe for BoxService<T, U, E>

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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, 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<T, Request> ServiceExt<Request> for T
where T: Service<Request> + ?Sized,

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fn ready(&mut self) -> Ready<'_, Self, Request> ⓘ
where Self: Sized,

👎Deprecated since 0.3.1: prefer ready_and which yields the service
Resolves when the service is ready to accept a request.
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fn ready_and(&mut self) -> ReadyAnd<'_, Self, Request> ⓘ
where Self: Sized,

Yields a mutable reference to the service when it is ready to accept a request.
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fn ready_oneshot(self) -> ReadyOneshot<Self, Request> ⓘ
where Self: Sized,

Yields the service when it is ready to accept a request.
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fn oneshot(self, req: Request) -> Oneshot<Self, Request> ⓘ
where Self: Sized,

Consume this Service, calling with the providing request once it is ready.
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fn call_all<S>(self, reqs: S) -> CallAll<Self, S>
where Self: Sized, Self::Error: Into<Error>, S: Stream<Item = Request>,

Process all requests from the given Stream, and produce a Stream of their responses. Read more
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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.