[−][src]Struct futures_retry::FutureRetry
A future that transparently launches an underlying future (created by a provided factory each time) as many times as needed to get things done.
It is useful fot situations when you need to make several attempts, e.g. for establishing connections, RPC calls.
There is also a type to handle Stream errors: StreamRetry.#pin_project
Implementations
impl<F: FutureFactory, R> FutureRetry<F, R>[src]
pub fn new(factory: F, error_action: R) -> Self[src]
Creates a FutureRetry using a provided factory and an object of ErrorHandler type that
decides on a retry-policy depending on an encountered error.
Please refer to the tcp-client example in the examples folder to have a look at a
possible usage.
Arguments
factory: a factory that creates futures,error_action: a type that handles an error and decides which route to take: simply try again, wait and then try, or give up (on a critical error for exapmle).
Trait Implementations
impl<F: FutureFactory, R> Future for FutureRetry<F, R> where
R: ErrorHandler<<F::FutureItem as TryFuture>::Error>, [src]
R: ErrorHandler<<F::FutureItem as TryFuture>::Error>,
type Output = Result<(<<F as FutureFactory>::FutureItem as TryFuture>::Ok, usize), (R::OutError, usize)>
The type of value produced on completion.
pub fn poll(
mut self: Pin<&mut Self>,
cx: &mut Context<'_>
) -> Poll<Self::Output>[src]
mut self: Pin<&mut Self>,
cx: &mut Context<'_>
) -> Poll<Self::Output>
impl<'__pin, F, R> Unpin for FutureRetry<F, R> where
__Origin<'__pin, F, R>: Unpin,
F: FutureFactory, [src]
__Origin<'__pin, F, R>: Unpin,
F: FutureFactory,
Auto Trait Implementations
impl<F, R> !RefUnwindSafe for FutureRetry<F, R>[src]
impl<F, R> Send for FutureRetry<F, R> where
F: Send,
R: Send,
<F as FutureFactory>::FutureItem: Send, [src]
F: Send,
R: Send,
<F as FutureFactory>::FutureItem: Send,
impl<F, R> Sync for FutureRetry<F, R> where
F: Sync,
R: Sync,
<F as FutureFactory>::FutureItem: Sync, [src]
F: Sync,
R: Sync,
<F as FutureFactory>::FutureItem: Sync,
impl<F, R> !UnwindSafe for FutureRetry<F, R>[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,
T: Future + ?Sized,
pub fn map<U, F>(self, f: F) -> Map<Self, F> where
F: FnOnce(Self::Output) -> U,
F: FnOnce(Self::Output) -> U,
pub fn map_into<U>(self) -> MapInto<Self, U> where
Self::Output: Into<U>,
Self::Output: Into<U>,
pub fn then<Fut, F>(self, f: F) -> Then<Self, Fut, F> where
F: FnOnce(Self::Output) -> Fut,
Fut: Future,
F: FnOnce(Self::Output) -> Fut,
Fut: Future,
pub fn left_future<B>(self) -> Either<Self, B> where
B: Future<Output = Self::Output>,
B: Future<Output = Self::Output>,
pub fn right_future<A>(self) -> Either<A, Self> where
A: Future<Output = Self::Output>,
A: Future<Output = Self::Output>,
pub fn into_stream(self) -> IntoStream<Self>
pub fn flatten(self) -> Flatten<Self> where
Self::Output: Future,
Self::Output: Future,
pub fn flatten_stream(self) -> FlattenStream<Self> where
Self::Output: Stream,
Self::Output: Stream,
pub fn fuse(self) -> Fuse<Self>
pub fn inspect<F>(self, f: F) -> Inspect<Self, F> where
F: FnOnce(&Self::Output),
F: FnOnce(&Self::Output),
pub fn catch_unwind(self) -> CatchUnwind<Self> where
Self: UnwindSafe,
Self: UnwindSafe,
pub fn shared(self) -> Shared<Self> where
Self::Output: Clone,
Self::Output: Clone,
pub fn remote_handle(self) -> (Remote<Self>, RemoteHandle<Self::Output>)
pub fn boxed<'a>(
self
) -> Pin<Box<dyn Future<Output = Self::Output> + 'a + Send, Global>> where
Self: Send + 'a,
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,
self
) -> Pin<Box<dyn Future<Output = Self::Output> + 'a, Global>> where
Self: 'a,
pub fn unit_error(self) -> UnitError<Self>
pub fn never_error(self) -> NeverError<Self>
pub fn poll_unpin(&mut self, cx: &mut Context<'_>) -> Poll<Self::Output> where
Self: Unpin,
Self: Unpin,
pub fn now_or_never(self) -> Option<Self::Output>
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,
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>
self: Pin<&mut F>,
cx: &mut Context<'_>
) -> Poll<<F as Future>::Output>
impl<Fut> TryFutureExt for Fut where
Fut: TryFuture + ?Sized,
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,
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,
F: FnOnce(Self::Ok) -> T,
pub fn map_ok_or_else<T, E, F>(self, e: E, f: F) -> MapOkOrElse<Self, F, E> where
E: FnOnce(Self::Error) -> T,
F: FnOnce(Self::Ok) -> T,
E: FnOnce(Self::Error) -> T,
F: FnOnce(Self::Ok) -> T,
pub fn map_err<E, F>(self, f: F) -> MapErr<Self, F> where
F: FnOnce(Self::Error) -> E,
F: FnOnce(Self::Error) -> E,
pub fn err_into<E>(self) -> ErrInto<Self, E> where
Self::Error: Into<E>,
Self::Error: Into<E>,
pub fn ok_into<U>(self) -> OkInto<Self, U> where
Self::Ok: Into<U>,
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>,
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>,
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),
F: FnOnce(&Self::Ok),
pub fn inspect_err<F>(self, f: F) -> InspectErr<Self, F> where
F: FnOnce(&Self::Error),
F: FnOnce(&Self::Error),
pub fn try_flatten(self) -> TryFlatten<Self, Self::Ok> where
Self::Ok: TryFuture,
<Self::Ok as TryFuture>::Error == Self::Error,
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,
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,
F: FnOnce(Self::Error) -> Self::Ok,
pub fn into_future(self) -> IntoFuture<Self>
pub fn try_poll_unpin(
&mut self,
cx: &mut Context<'_>
) -> Poll<Result<Self::Ok, Self::Error>> where
Self: Unpin,
&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>,