Struct actix_web::dev::AsyncResult
source · pub struct AsyncResult<I, E = Error>(_);
Expand description
Represents async result
Result could be in tree different forms.
- Ok(T) - ready item
- Err(E) - error happen during reply process
- Future<T, E> - reply process completes in the future
Implementations
sourceimpl<I, E> AsyncResult<I, E>
impl<I, E> AsyncResult<I, E>
sourcepub fn async(fut: Box<dyn Future<Item = I, Error = E>>) -> AsyncResult<I, E>
pub fn async(fut: Box<dyn Future<Item = I, Error = E>>) -> AsyncResult<I, E>
Create async response
sourcepub fn ok<R: Into<I>>(ok: R) -> AsyncResult<I, E>
pub fn ok<R: Into<I>>(ok: R) -> AsyncResult<I, E>
Send response
sourcepub fn err<R: Into<E>>(err: R) -> AsyncResult<I, E>
pub fn err<R: Into<E>>(err: R) -> AsyncResult<I, E>
Send error
Trait Implementations
sourceimpl<T, E: Into<Error>> From<Result<AsyncResult<T, Error>, E>> for AsyncResult<T>
impl<T, E: Into<Error>> From<Result<AsyncResult<T, Error>, E>> for AsyncResult<T>
sourcefn from(res: Result<AsyncResult<T>, E>) -> Self
fn from(res: Result<AsyncResult<T>, E>) -> Self
Converts to this type from the input type.
sourceimpl<T, E> From<Result<Box<dyn Future<Error = E, Item = T> + 'static, Global>, E>> for AsyncResult<T>where
T: 'static,
E: Into<Error> + 'static,
impl<T, E> From<Result<Box<dyn Future<Error = E, Item = T> + 'static, Global>, E>> for AsyncResult<T>where
T: 'static,
E: Into<Error> + 'static,
sourceimpl<T> From<T> for AsyncResult<T>
impl<T> From<T> for AsyncResult<T>
sourcefn from(resp: T) -> AsyncResult<T>
fn from(resp: T) -> AsyncResult<T>
Converts to this type from the input type.
sourceimpl<I, E> Future for AsyncResult<I, E>
impl<I, E> Future for AsyncResult<I, E>
type Error = E
type Error = E
The type of error that this future will resolve with if it fails in a
normal fashion. Read more
sourcefn poll(&mut self) -> Poll<I, E>
fn poll(&mut self) -> Poll<I, E>
Query this future to see if its value has become available, registering
interest if it is not. Read more
sourcefn wait(self) -> Result<Self::Item, Self::Error>where
Self: Sized,
fn wait(self) -> Result<Self::Item, Self::Error>where
Self: Sized,
Block the current thread until this future is resolved. Read more
sourcefn map<F, U>(self, f: F) -> Map<Self, F>where
F: FnOnce(Self::Item) -> U,
Self: Sized,
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
sourcefn map_err<F, E>(self, f: F) -> MapErr<Self, F>where
F: FnOnce(Self::Error) -> E,
Self: Sized,
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
sourcefn from_err<E>(self) -> FromErr<Self, E>where
E: From<Self::Error>,
Self: Sized,
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 moresourcefn then<F, B>(self, f: F) -> Then<Self, B, F>where
F: FnOnce(Result<Self::Item, Self::Error>) -> B,
B: IntoFuture,
Self: Sized,
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 moresourcefn and_then<F, B>(self, f: F) -> AndThen<Self, B, F>where
F: FnOnce(Self::Item) -> B,
B: IntoFuture<Error = Self::Error>,
Self: Sized,
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
sourcefn or_else<F, B>(self, f: F) -> OrElse<Self, B, F>where
F: FnOnce(Self::Error) -> B,
B: IntoFuture<Item = Self::Item>,
Self: Sized,
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
sourcefn select<B>(self, other: B) -> Select<Self, <B as IntoFuture>::Future>where
B: IntoFuture<Item = Self::Item, Error = Self::Error>,
Self: Sized,
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
sourcefn select2<B>(self, other: B) -> Select2<Self, <B as IntoFuture>::Future>where
B: IntoFuture,
Self: Sized,
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
sourcefn join<B>(self, other: B) -> Join<Self, <B as IntoFuture>::Future>where
B: IntoFuture<Error = Self::Error>,
Self: Sized,
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
sourcefn 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,
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.sourcefn 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,
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.sourcefn 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,
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.sourcefn into_stream(self) -> IntoStream<Self>where
Self: Sized,
fn into_stream(self) -> IntoStream<Self>where
Self: Sized,
Convert this future into a single element stream. Read more
sourcefn fuse(self) -> Fuse<Self>where
Self: Sized,
fn fuse(self) -> Fuse<Self>where
Self: Sized,
Fuse a future such that
poll
will never again be called once it has
completed. Read moresourcefn inspect<F>(self, f: F) -> Inspect<Self, F>where
F: FnOnce(&Self::Item),
Self: Sized,
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
Create a cloneable handle to this future where all handles will resolve
to the same result. Read more
sourceimpl Responder for AsyncResult<HttpResponse>
impl Responder for AsyncResult<HttpResponse>
type Item = AsyncResult<HttpResponse, Error>
type Item = AsyncResult<HttpResponse, Error>
The associated item which can be returned.
sourcefn respond_to<S>(
self,
_: &HttpRequest<S>
) -> Result<AsyncResult<HttpResponse>, Error>
fn respond_to<S>(
self,
_: &HttpRequest<S>
) -> Result<AsyncResult<HttpResponse>, Error>
Convert itself to
AsyncResult
or Error
.Auto Trait Implementations
impl<I, E = Error> !RefUnwindSafe for AsyncResult<I, E>
impl<I, E = Error> !Send for AsyncResult<I, E>
impl<I, E = Error> !Sync for AsyncResult<I, E>
impl<I, E> Unpin for AsyncResult<I, E>where
E: Unpin,
I: Unpin,
impl<I, E = Error> !UnwindSafe for AsyncResult<I, E>
Blanket Implementations
sourceimpl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
sourceimpl<F> IntoFuture for Fwhere
F: Future,
impl<F> IntoFuture for Fwhere
F: Future,
impl<V, T> VZip<V> for Twhere
V: MultiLane<T>,
impl<V, T> VZip<V> for Twhere
V: MultiLane<T>,
fn vzip(self) -> V
sourceimpl<F, A> WrapFuture<A> for Fwhere
F: Future,
A: Actor,
impl<F, A> WrapFuture<A> for Fwhere
F: Future,
A: Actor,
type Future = FutureWrap<F, A>
type Future = FutureWrap<F, A>
The future that this type can be converted into.
sourcefn into_actor(self, _: &A) -> <F as WrapFuture<A>>::Future
fn into_actor(self, _: &A) -> <F as WrapFuture<A>>::Future
Convert normal future to a ActorFuture