Struct tower::balance::pool::PoolDiscoverer[−][src]

pub struct PoolDiscoverer<MS, Target, Request> where
    MS: MakeService<Target, Request>,  { /* fields omitted */ }

Expand description

A wrapper around MakeService that discovers a new service when load is high, and removes a service when load is low. See Pool.

Trait Implementations

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impl<MS, Target, Request> Debug for PoolDiscoverer<MS, Target, Request> where
MS: MakeService<Target, Request> + Debug,
Target: Debug,

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

Formats the value using the given formatter. Read more

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impl<MS, Target, Request> Stream for PoolDiscoverer<MS, Target, Request> where
 MS: MakeService<Target, Request>,
 MS::MakeError: Into<BoxError>,
 MS::Error: Into<BoxError>,
 Target: Clone,

type Item = Result<Change<usize, DropNotifyService<MS::Service>>, MS::MakeError>

Values yielded by the stream.

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fn poll_next(
self: Pin<&mut Self>,
cx: &mut Context<'_>
) -> Poll<Option<Self::Item>>

Attempt to pull out the next value of this stream, registering the current task for wakeup if the value is not yet available, and returning None if the stream is exhausted. Read more

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fn size_hint(&self) -> (usize, Option<usize>)

Returns the bounds on the remaining length of the stream. Read more

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impl<'pin, MS, Target, Request> Unpin for PoolDiscoverer<MS, Target, Request> where
Origin<'__pin, MS, Target, Request>: Unpin,
MS: MakeService<Target, Request>,

Auto Trait Implementations

impl<MS, Target, Request> !RefUnwindSafe for PoolDiscoverer<MS, Target, Request>

impl<MS, Target, Request> Send for PoolDiscoverer<MS, Target, Request> where
 MS: Send,
 Target: Send,
 <MS as MakeService<Target, Request>>::Future: Send,

impl<MS, Target, Request> Sync for PoolDiscoverer<MS, Target, Request> where
 MS: Sync,
 Target: Sync,
 <MS as MakeService<Target, Request>>::Future: Sync,

impl<MS, Target, Request> !UnwindSafe for PoolDiscoverer<MS, Target, Request>

Blanket Implementations

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

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

Mutably borrows from an owned value. Read more

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impl<K, S, E, D> Discover for D where
D: TryStream<Ok = Change<K, S>, Error = E> + ?Sized,
K: Eq,

type Key = K

A unique identifier for each active service. Read more

type Service = S

The type of Service yielded by this Discover. Read more

type Error = E

Error produced during discovery

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pub fn poll_discover(
Pin<&mut D>,
&mut Context<'_>
) -> Poll<Option<Result<<D as TryStream>::Ok, <D as TryStream>::Error>>>

Yields the next discovery change set.

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impl<T> From<T> for T

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pub fn from(t: T) -> T

Performs the conversion.

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more

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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

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impl<T, U> Into for T where
U: From<T>,

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pub fn into(self) -> U

Performs the conversion.

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impl<T> StreamExt for T where
T: Stream + ?Sized,

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fn next(&mut self) -> Next<'_, Self> where
Self: Unpin,

Creates a future that resolves to the next item in the stream. Read more

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fn into_future(self) -> StreamFuture<Self> where
Self: Unpin,

Converts this stream into a future of (next_item, tail_of_stream). If the stream terminates, then the next item is None. Read more

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fn map<T, F>(self, f: F) -> Map<Self, F> where
F: FnMut(Self::Item) -> T,

Maps this stream’s items to a different type, returning a new stream of the resulting type. Read more

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fn enumerate(self) -> Enumerate<Self>

Creates a stream which gives the current iteration count as well as the next value. Read more

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fn filter<Fut, F>(self, f: F) -> Filter<Self, Fut, F> where
F: FnMut(&Self::Item) -> Fut,
Fut: Future<Output = bool>,

Filters the values produced by this stream according to the provided asynchronous predicate. Read more

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fn filter_map<Fut, T, F>(self, f: F) -> FilterMap<Self, Fut, F> where
F: FnMut(Self::Item) -> Fut,
Fut: Future<Output = Option<T>>,

Filters the values produced by this stream while simultaneously mapping them to a different type according to the provided asynchronous closure. Read more

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fn then<Fut, F>(self, f: F) -> Then<Self, Fut, F> where
F: FnMut(Self::Item) -> Fut,
Fut: Future,

Computes from this stream’s items new items of a different type using an asynchronous closure. Read more

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fn collect<C>(self) -> Collect<Self, C> where
C: Default + Extend<Self::Item>,

Transforms a stream into a collection, returning a future representing the result of that computation. Read more

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fn unzip<A, B, FromA, FromB>(self) -> Unzip<Self, FromA, FromB> where
 FromA: Default + Extend<A>,
 FromB: Default + Extend,
 Self: Stream<Item = (A, B)>,

Converts a stream of pairs into a future, which resolves to pair of containers. Read more

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fn concat(self) -> Concat<Self> where
 Self::Item: Extend<<Self::Item as IntoIterator>::Item>,
 Self::Item: IntoIterator,
 Self::Item: Default,

Concatenate all items of a stream into a single extendable destination, returning a future representing the end result. Read more

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fn cycle(self) -> Cycle<Self> where
Self: Clone,

Repeats a stream endlessly. Read more

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fn fold<T, Fut, F>(self, init: T, f: F) -> Fold<Self, Fut, T, F> where
F: FnMut(T, Self::Item) -> Fut,
Fut: Future<Output = T>,

Execute an accumulating asynchronous computation over a stream, collecting all the values into one final result. Read more

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fn any<Fut, F>(self, f: F) -> Any<Self, Fut, F> where
F: FnMut(Self::Item) -> Fut,
Fut: Future<Output = bool>,

Execute predicate over asynchronous stream, and return true if any element in stream satisfied a predicate. Read more

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fn all<Fut, F>(self, f: F) -> All<Self, Fut, F> where
F: FnMut(Self::Item) -> Fut,
Fut: Future<Output = bool>,

Execute predicate over asynchronous stream, and return true if all element in stream satisfied a predicate. Read more

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fn flatten(self) -> Flatten<Self> where
Self::Item: Stream,

Flattens a stream of streams into just one continuous stream. Read more

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fn flat_map<U, F>(self, f: F) -> FlatMap<Self, U, F> where
F: FnMut(Self::Item) -> U,
U: Stream,

Maps a stream like StreamExt::map but flattens nested Streams. Read more

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fn scan<S, B, Fut, F>(self, initial_state: S, f: F) -> Scan<Self, S, Fut, F> where
F: FnMut(&mut S, Self::Item) -> Fut,
Fut: Future<Output = Option>,

Combinator similar to StreamExt::fold that holds internal state and produces a new stream. Read more

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fn skip_while<Fut, F>(self, f: F) -> SkipWhile<Self, Fut, F> where
F: FnMut(&Self::Item) -> Fut,
Fut: Future<Output = bool>,

Skip elements on this stream while the provided asynchronous predicate resolves to true. Read more

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fn take_while<Fut, F>(self, f: F) -> TakeWhile<Self, Fut, F> where
F: FnMut(&Self::Item) -> Fut,
Fut: Future<Output = bool>,

Take elements from this stream while the provided asynchronous predicate resolves to true. Read more

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fn take_until<Fut>(self, fut: Fut) -> TakeUntil<Self, Fut> where
Fut: Future,

Take elements from this stream until the provided future resolves. Read more

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fn for_each<Fut, F>(self, f: F) -> ForEach<Self, Fut, F> where
F: FnMut(Self::Item) -> Fut,
Fut: Future<Output = ()>,

Runs this stream to completion, executing the provided asynchronous closure for each element on the stream. Read more

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fn for_each_concurrent<Fut, F>(
 self,
 limit: impl Into<Option<usize>>,
 f: F
) -> ForEachConcurrent<Self, Fut, F> where
 F: FnMut(Self::Item) -> Fut,
 Fut: Future<Output = ()>,

Runs this stream to completion, executing the provided asynchronous closure for each element on the stream concurrently as elements become available. Read more

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fn take(self, n: usize) -> Take<Self>

Creates a new stream of at most n items of the underlying stream. Read more

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fn skip(self, n: usize) -> Skip<Self>

Creates a new stream which skips n items of the underlying stream. Read more

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fn fuse(self) -> Fuse<Self>

Fuse a stream such that poll_next will never again be called once it has finished. This method can be used to turn any Stream into a FusedStream. Read more

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fn by_ref(&mut self) -> &mut Self

Borrows a stream, rather than consuming it. Read more

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fn catch_unwind(self) -> CatchUnwind<Self> where
Self: UnwindSafe,

Catches unwinding panics while polling the stream. Read more

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fn boxed<'a>(
self
) -> Pin<Box<dyn Stream<Item = Self::Item> + Send + 'a, Global>> where
Self: 'a + Send,

Wrap the stream in a Box, pinning it. Read more

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fn boxed_local<'a>(self) -> Pin<Box<dyn Stream<Item = Self::Item> + 'a, Global>> where
Self: 'a,

Wrap the stream in a Box, pinning it. Read more

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fn buffered(self, n: usize) -> Buffered<Self> where
Self::Item: Future,

An adaptor for creating a buffered list of pending futures. Read more

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fn buffer_unordered(self, n: usize) -> BufferUnordered<Self> where
Self::Item: Future,

An adaptor for creating a buffered list of pending futures (unordered). Read more

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fn zip<St>(self, other: St) -> Zip<Self, St> where
St: Stream,

An adapter for zipping two streams together. Read more

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fn chain<St>(self, other: St) -> Chain<Self, St> where
St: Stream<Item = Self::Item>,

Adapter for chaining two streams. Read more

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fn peekable(self) -> Peekable<Self>

Creates a new stream which exposes a peek method. Read more

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fn chunks(self, capacity: usize) -> Chunks<Self>

An adaptor for chunking up items of the stream inside a vector. Read more

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fn ready_chunks(self, capacity: usize) -> ReadyChunks<Self>

An adaptor for chunking up ready items of the stream inside a vector. Read more

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fn inspect<F>(self, f: F) -> Inspect<Self, F> where
F: FnMut(&Self::Item),

Do something with each item of this stream, afterwards passing it on. Read more

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fn left_stream(self) -> Either<Self, B> where
B: Stream<Item = Self::Item>,

Wrap this stream in an Either stream, making it the left-hand variant of that Either. Read more

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fn right_stream(self) -> Either<B, Self> where
B: Stream<Item = Self::Item>,

Wrap this stream in an Either stream, making it the right-hand variant of that Either. Read more

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fn poll_next_unpin(&mut self, cx: &mut Context<'_>) -> Poll<Option<Self::Item>> where
Self: Unpin,

A convenience method for calling Stream::poll_next on Unpin stream types. Read more

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fn select_next_some(&mut self) -> SelectNextSome<'_, Self> where
Self: Unpin + FusedStream,

Returns a Future that resolves when the next item in this stream is ready. Read more

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impl<T, U> TryFrom for T where
U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

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pub fn try_from(value: U) -> Result<T, <T as TryFrom>::Error>

Performs the conversion.

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impl<T, U> TryInto for T where
U: TryFrom<T>,

type Error = >::Error

The type returned in the event of a conversion error.

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pub fn try_into(self) -> Result<U, >::Error>

Performs the conversion.

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impl<S, T, E> TryStream for S where
S: Stream<Item = 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

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pub fn try_poll_next(
self: Pin<&mut S>,
cx: &mut Context<'_>
) -> Poll<Option<Result<<S as TryStream>::Ok, <S as TryStream>::Error>>>

Poll this TryStream as if it were a Stream. Read more

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impl<S> TryStreamExt for S where
S: TryStream + ?Sized,

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fn err_into<E>(self) -> ErrInto<Self, E> where
Self::Error: Into<E>,

Wraps the current stream in a new stream which converts the error type into the one provided. Read more

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fn map_ok<T, F>(self, f: F) -> MapOk<Self, F> where
F: FnMut(Self::Ok) -> T,

Wraps the current stream in a new stream which maps the success value using the provided closure. Read more

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fn map_err<E, F>(self, f: F) -> MapErr<Self, F> where
F: FnMut(Self::Error) -> E,

Wraps the current stream in a new stream which maps the error value using the provided closure. Read more

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fn and_then<Fut, F>(self, f: F) -> AndThen<Self, Fut, F> where
F: FnMut(Self::Ok) -> Fut,
Fut: TryFuture<Error = Self::Error>,

Chain on a computation for when a value is ready, passing the successful results to the provided closure f. Read more

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fn or_else<Fut, F>(self, f: F) -> OrElse<Self, Fut, F> where
F: FnMut(Self::Error) -> Fut,
Fut: TryFuture<Ok = Self::Ok>,

Chain on a computation for when an error happens, passing the erroneous result to the provided closure f. Read more

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fn inspect_ok<F>(self, f: F) -> InspectOk<Self, F> where
F: FnMut(&Self::Ok),

Do something with the success value of this stream, afterwards passing it on. Read more

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fn inspect_err<F>(self, f: F) -> InspectErr<Self, F> where
F: FnMut(&Self::Error),

Do something with the error value of this stream, afterwards passing it on. Read more

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fn into_stream(self) -> IntoStream<Self>

Wraps a TryStream into a type that implements Stream Read more

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fn try_next(&mut self) -> TryNext<'_, Self> where
Self: Unpin,

Creates a future that attempts to resolve the next item in the stream. If an error is encountered before the next item, the error is returned instead. Read more

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fn try_for_each<Fut, F>(self, f: F) -> TryForEach<Self, Fut, F> where
F: FnMut(Self::Ok) -> Fut,
Fut: TryFuture<Ok = (), Error = Self::Error>,

Attempts to run this stream to completion, executing the provided asynchronous closure for each element on the stream. Read more

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fn try_skip_while<Fut, F>(self, f: F) -> TrySkipWhile<Self, Fut, F> where
F: FnMut(&Self::Ok) -> Fut,
Fut: TryFuture<Ok = bool, Error = Self::Error>,

Skip elements on this stream while the provided asynchronous predicate resolves to true. Read more

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fn try_take_while<Fut, F>(self, f: F) -> TryTakeWhile<Self, Fut, F> where
F: FnMut(&Self::Ok) -> Fut,
Fut: TryFuture<Ok = bool, Error = Self::Error>,

Take elements on this stream while the provided asynchronous predicate resolves to true. Read more

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fn try_for_each_concurrent<Fut, F>(
 self,
 limit: impl Into<Option<usize>>,
 f: F
) -> TryForEachConcurrent<Self, Fut, F> where
 F: FnMut(Self::Ok) -> Fut,
 Fut: Future<Output = Result<(), Self::Error>>,

Attempts to run this stream to completion, executing the provided asynchronous closure for each element on the stream concurrently as elements become available, exiting as soon as an error occurs. Read more

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fn try_collect<C>(self) -> TryCollect<Self, C> where
C: Default + Extend<Self::Ok>,

Attempt to transform a stream into a collection, returning a future representing the result of that computation. Read more

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fn try_chunks(self, capacity: usize) -> TryChunks<Self>

An adaptor for chunking up successful items of the stream inside a vector. Read more

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fn try_filter<Fut, F>(self, f: F) -> TryFilter<Self, Fut, F> where
Fut: Future<Output = bool>,
F: FnMut(&Self::Ok) -> Fut,

Attempt to filter the values produced by this stream according to the provided asynchronous closure. Read more

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fn try_filter_map<Fut, F, T>(self, f: F) -> TryFilterMap<Self, Fut, F> where
Fut: TryFuture<Ok = Option<T>, Error = Self::Error>,
F: FnMut(Self::Ok) -> Fut,

Attempt to filter the values produced by this stream while simultaneously mapping them to a different type according to the provided asynchronous closure. Read more

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fn try_flatten(self) -> TryFlatten<Self> where
Self::Ok: TryStream,
<Self::Ok as TryStream>::Error: From<Self::Error>,

Flattens a stream of streams into just one continuous stream. Read more

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fn try_fold<T, Fut, F>(self, init: T, f: F) -> TryFold<Self, Fut, T, F> where
F: FnMut(T, Self::Ok) -> Fut,
Fut: TryFuture<Ok = T, Error = Self::Error>,

Attempt to execute an accumulating asynchronous computation over a stream, collecting all the values into one final result. Read more

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fn try_concat(self) -> TryConcat<Self> where
 Self::Ok: Extend<<Self::Ok as IntoIterator>::Item>,
 Self::Ok: IntoIterator,
 Self::Ok: Default,

Attempt to concatenate all items of a stream into a single extendable destination, returning a future representing the end result. Read more

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fn try_buffer_unordered(self, n: usize) -> TryBufferUnordered<Self> where
Self::Ok: TryFuture,
<Self::Ok as TryFuture>::Error == Self::Error,

Attempt to execute several futures from a stream concurrently (unordered). Read more

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fn try_buffered(self, n: usize) -> TryBuffered<Self> where
Self::Ok: TryFuture,
<Self::Ok as TryFuture>::Error == Self::Error,

Attempt to execute several futures from a stream concurrently. Read more

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fn try_poll_next_unpin(
 &mut self,
 cx: &mut Context<'_>
) -> Poll<Option<Result<Self::Ok, Self::Error>>> where
 Self: Unpin,

A convenience method for calling TryStream::try_poll_next on Unpin stream types. Read more

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self> where
S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more

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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more

Struct tower::balance::pool::PoolDiscoverer[−][src]

Trait Implementations

impl<MS, Target, Request> Debug for PoolDiscoverer<MS, Target, Request> where MS: MakeService<Target, Request> + Debug, Target: Debug,

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

impl<MS, Target, Request> Stream for PoolDiscoverer<MS, Target, Request> where MS: MakeService<Target, Request>, MS::MakeError: Into<BoxError>, MS::Error: Into<BoxError>, Target: Clone,

type Item = Result<Change<usize, DropNotifyService<MS::Service>>, MS::MakeError>

fn poll_next( self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Option<Self::Item>>

fn size_hint(&self) -> (usize, Option<usize>)

impl<'__pin, MS, Target, Request> Unpin for PoolDiscoverer<MS, Target, Request> where __Origin<'__pin, MS, Target, Request>: Unpin, MS: MakeService<Target, Request>,

Auto Trait Implementations

impl<MS, Target, Request> !RefUnwindSafe for PoolDiscoverer<MS, Target, Request>

impl<MS, Target, Request> Send for PoolDiscoverer<MS, Target, Request> where MS: Send, Target: Send, <MS as MakeService<Target, Request>>::Future: Send,

impl<MS, Target, Request> Sync for PoolDiscoverer<MS, Target, Request> where MS: Sync, Target: Sync, <MS as MakeService<Target, Request>>::Future: Sync,

impl<MS, Target, Request> !UnwindSafe for PoolDiscoverer<MS, Target, Request>

Blanket Implementations

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

pub fn type_id(&self) -> TypeId

impl<T> Borrow<T> for T where T: ?Sized,

pub fn borrow(&self) -> &T

impl<T> BorrowMut<T> for T where T: ?Sized,

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

impl<K, S, E, D> Discover for D where D: TryStream<Ok = Change<K, S>, Error = E> + ?Sized, K: Eq,

type Key = K

type Service = S

type Error = E

pub fn poll_discover( Pin<&mut D>, &mut Context<'_>) -> Poll<Option<Result<<D as TryStream>::Ok, <D as TryStream>::Error>>>

impl<T> From<T> for T

pub fn from(t: T) -> T

impl<T> Instrument for T

fn instrument(self, span: Span) -> Instrumented<Self>

fn in_current_span(self) -> Instrumented<Self>

impl<T, U> Into<U> for T where U: From<T>,

pub fn into(self) -> U

impl<T> StreamExt for T where T: Stream + ?Sized,

fn next(&mut self) -> Next<'_, Self> where Self: Unpin,

fn into_future(self) -> StreamFuture<Self> where Self: Unpin,

fn map<T, F>(self, f: F) -> Map<Self, F> where F: FnMut(Self::Item) -> T,

fn enumerate(self) -> Enumerate<Self>

fn filter<Fut, F>(self, f: F) -> Filter<Self, Fut, F> where F: FnMut(&Self::Item) -> Fut, Fut: Future<Output = bool>,

fn filter_map<Fut, T, F>(self, f: F) -> FilterMap<Self, Fut, F> where F: FnMut(Self::Item) -> Fut, Fut: Future<Output = Option<T>>,

fn then<Fut, F>(self, f: F) -> Then<Self, Fut, F> where F: FnMut(Self::Item) -> Fut, Fut: Future,

fn collect<C>(self) -> Collect<Self, C> where C: Default + Extend<Self::Item>,

fn unzip<A, B, FromA, FromB>(self) -> Unzip<Self, FromA, FromB> where FromA: Default + Extend<A>, FromB: Default + Extend<B>, Self: Stream<Item = (A, B)>,

fn concat(self) -> Concat<Self> where Self::Item: Extend<<Self::Item as IntoIterator>::Item>, Self::Item: IntoIterator, Self::Item: Default,

fn cycle(self) -> Cycle<Self> where Self: Clone,

fn fold<T, Fut, F>(self, init: T, f: F) -> Fold<Self, Fut, T, F> where F: FnMut(T, Self::Item) -> Fut, Fut: Future<Output = T>,

fn any<Fut, F>(self, f: F) -> Any<Self, Fut, F> where F: FnMut(Self::Item) -> Fut, Fut: Future<Output = bool>,

fn all<Fut, F>(self, f: F) -> All<Self, Fut, F> where F: FnMut(Self::Item) -> Fut, Fut: Future<Output = bool>,

fn flatten(self) -> Flatten<Self> where Self::Item: Stream,

fn flat_map<U, F>(self, f: F) -> FlatMap<Self, U, F> where F: FnMut(Self::Item) -> U, U: Stream,

fn scan<S, B, Fut, F>(self, initial_state: S, f: F) -> Scan<Self, S, Fut, F> where F: FnMut(&mut S, Self::Item) -> Fut, Fut: Future<Output = Option<B>>,

fn skip_while<Fut, F>(self, f: F) -> SkipWhile<Self, Fut, F> where F: FnMut(&Self::Item) -> Fut, Fut: Future<Output = bool>,

fn take_while<Fut, F>(self, f: F) -> TakeWhile<Self, Fut, F> where F: FnMut(&Self::Item) -> Fut, Fut: Future<Output = bool>,

fn take_until<Fut>(self, fut: Fut) -> TakeUntil<Self, Fut> where Fut: Future,

fn for_each<Fut, F>(self, f: F) -> ForEach<Self, Fut, F> where F: FnMut(Self::Item) -> Fut, Fut: Future<Output = ()>,

fn for_each_concurrent<Fut, F>( self, limit: impl Into<Option<usize>>, f: F) -> ForEachConcurrent<Self, Fut, F> where F: FnMut(Self::Item) -> Fut, Fut: Future<Output = ()>,

fn take(self, n: usize) -> Take<Self>

fn skip(self, n: usize) -> Skip<Self>

fn fuse(self) -> Fuse<Self>

fn by_ref(&mut self) -> &mut Self

fn catch_unwind(self) -> CatchUnwind<Self> where Self: UnwindSafe,

fn boxed<'a>( self) -> Pin<Box<dyn Stream<Item = Self::Item> + Send + 'a, Global>> where Self: 'a + Send,

fn boxed_local<'a>(self) -> Pin<Box<dyn Stream<Item = Self::Item> + 'a, Global>> where Self: 'a,

fn buffered(self, n: usize) -> Buffered<Self> where Self::Item: Future,

fn buffer_unordered(self, n: usize) -> BufferUnordered<Self> where Self::Item: Future,

fn zip<St>(self, other: St) -> Zip<Self, St> where St: Stream,

fn chain<St>(self, other: St) -> Chain<Self, St> where St: Stream<Item = Self::Item>,

fn peekable(self) -> Peekable<Self>

fn chunks(self, capacity: usize) -> Chunks<Self>

fn ready_chunks(self, capacity: usize) -> ReadyChunks<Self>

fn inspect<F>(self, f: F) -> Inspect<Self, F> where F: FnMut(&Self::Item),

fn left_stream<B>(self) -> Either<Self, B> where B: Stream<Item = Self::Item>,

fn right_stream<B>(self) -> Either<B, Self> where B: Stream<Item = Self::Item>,

fn poll_next_unpin(&mut self, cx: &mut Context<'_>) -> Poll<Option<Self::Item>> where Self: Unpin,

fn select_next_some(&mut self) -> SelectNextSome<'_, Self> where Self: Unpin + FusedStream,

impl<T, U> TryFrom<U> for T where U: Into<T>,

type Error = Infallible

pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for T where U: TryFrom<T>,

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

impl<MS, Target, Request> Debug for PoolDiscoverer<MS, Target, Request> where
MS: MakeService<Target, Request> + Debug,
Target: Debug,

impl<MS, Target, Request> Stream for PoolDiscoverer<MS, Target, Request> where
MS: MakeService<Target, Request>,
MS::MakeError: Into<BoxError>,
MS::Error: Into<BoxError>,
Target: Clone,

fn poll_next(
self: Pin<&mut Self>,
cx: &mut Context<'_>
) -> Poll<Option<Self::Item>>

impl<'pin, MS, Target, Request> Unpin for PoolDiscoverer<MS, Target, Request> where
Origin<'__pin, MS, Target, Request>: Unpin,
MS: MakeService<Target, Request>,

impl<MS, Target, Request> Send for PoolDiscoverer<MS, Target, Request> where
MS: Send,
Target: Send,
<MS as MakeService<Target, Request>>::Future: Send,

impl<MS, Target, Request> Sync for PoolDiscoverer<MS, Target, Request> where
MS: Sync,
Target: Sync,
<MS as MakeService<Target, Request>>::Future: Sync,

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

impl<T> Borrow<T> for T where
T: ?Sized,

impl<T> BorrowMut<T> for T where
T: ?Sized,

impl<K, S, E, D> Discover for D where
D: TryStream<Ok = Change<K, S>, Error = E> + ?Sized,
K: Eq,

pub fn poll_discover(
Pin<&mut D>,
&mut Context<'_>
) -> Poll<Option<Result<<D as TryStream>::Ok, <D as TryStream>::Error>>>

impl<T, U> Into<U> for T where
U: From<T>,

impl<T> StreamExt for T where
T: Stream + ?Sized,

fn next(&mut self) -> Next<'_, Self> where
Self: Unpin,

fn into_future(self) -> StreamFuture<Self> where
Self: Unpin,

fn map<T, F>(self, f: F) -> Map<Self, F> where
F: FnMut(Self::Item) -> T,

fn filter<Fut, F>(self, f: F) -> Filter<Self, Fut, F> where
F: FnMut(&Self::Item) -> Fut,
Fut: Future<Output = bool>,

fn filter_map<Fut, T, F>(self, f: F) -> FilterMap<Self, Fut, F> where
F: FnMut(Self::Item) -> Fut,
Fut: Future<Output = Option<T>>,

fn then<Fut, F>(self, f: F) -> Then<Self, Fut, F> where
F: FnMut(Self::Item) -> Fut,
Fut: Future,

fn collect<C>(self) -> Collect<Self, C> where
C: Default + Extend<Self::Item>,

fn unzip<A, B, FromA, FromB>(self) -> Unzip<Self, FromA, FromB> where
FromA: Default + Extend<A>,
FromB: Default + Extend<B>,
Self: Stream<Item = (A, B)>,

fn concat(self) -> Concat<Self> where
Self::Item: Extend<<Self::Item as IntoIterator>::Item>,
Self::Item: IntoIterator,
Self::Item: Default,

fn cycle(self) -> Cycle<Self> where
Self: Clone,

fn fold<T, Fut, F>(self, init: T, f: F) -> Fold<Self, Fut, T, F> where
F: FnMut(T, Self::Item) -> Fut,
Fut: Future<Output = T>,

fn any<Fut, F>(self, f: F) -> Any<Self, Fut, F> where
F: FnMut(Self::Item) -> Fut,
Fut: Future<Output = bool>,

fn all<Fut, F>(self, f: F) -> All<Self, Fut, F> where
F: FnMut(Self::Item) -> Fut,
Fut: Future<Output = bool>,

fn flatten(self) -> Flatten<Self> where
Self::Item: Stream,

fn flat_map<U, F>(self, f: F) -> FlatMap<Self, U, F> where
F: FnMut(Self::Item) -> U,
U: Stream,

fn scan<S, B, Fut, F>(self, initial_state: S, f: F) -> Scan<Self, S, Fut, F> where
F: FnMut(&mut S, Self::Item) -> Fut,
Fut: Future<Output = Option<B>>,

fn skip_while<Fut, F>(self, f: F) -> SkipWhile<Self, Fut, F> where
F: FnMut(&Self::Item) -> Fut,
Fut: Future<Output = bool>,

fn take_while<Fut, F>(self, f: F) -> TakeWhile<Self, Fut, F> where
F: FnMut(&Self::Item) -> Fut,
Fut: Future<Output = bool>,

fn take_until<Fut>(self, fut: Fut) -> TakeUntil<Self, Fut> where
Fut: Future,

fn for_each<Fut, F>(self, f: F) -> ForEach<Self, Fut, F> where
F: FnMut(Self::Item) -> Fut,
Fut: Future<Output = ()>,

fn for_each_concurrent<Fut, F>(
self,
limit: impl Into<Option<usize>>,
f: F
) -> ForEachConcurrent<Self, Fut, F> where
F: FnMut(Self::Item) -> Fut,
Fut: Future<Output = ()>,

fn catch_unwind(self) -> CatchUnwind<Self> where
Self: UnwindSafe,

fn boxed<'a>(
self
) -> Pin<Box<dyn Stream<Item = Self::Item> + Send + 'a, Global>> where
Self: 'a + Send,

fn boxed_local<'a>(self) -> Pin<Box<dyn Stream<Item = Self::Item> + 'a, Global>> where
Self: 'a,

fn buffered(self, n: usize) -> Buffered<Self> where
Self::Item: Future,

fn buffer_unordered(self, n: usize) -> BufferUnordered<Self> where
Self::Item: Future,

fn zip<St>(self, other: St) -> Zip<Self, St> where
St: Stream,

fn chain<St>(self, other: St) -> Chain<Self, St> where
St: Stream<Item = Self::Item>,

fn inspect<F>(self, f: F) -> Inspect<Self, F> where
F: FnMut(&Self::Item),

fn left_stream<B>(self) -> Either<Self, B> where
B: Stream<Item = Self::Item>,

fn right_stream<B>(self) -> Either<B, Self> where
B: Stream<Item = Self::Item>,

fn poll_next_unpin(&mut self, cx: &mut Context<'_>) -> Poll<Option<Self::Item>> where
Self: Unpin,

fn select_next_some(&mut self) -> SelectNextSome<'_, Self> where
Self: Unpin + FusedStream,

impl<T, U> TryFrom<U> for T where
U: Into<T>,

impl<T, U> TryInto<U> for T where
U: TryFrom<T>,

impl<S, T, E> TryStream for S where
S: Stream<Item = Result<T, E>> + ?Sized,

pub fn try_poll_next(
self: Pin<&mut S>,
cx: &mut Context<'_>
) -> Poll<Option<Result<<S as TryStream>::Ok, <S as TryStream>::Error>>>

impl<S> TryStreamExt for S where
S: TryStream + ?Sized,

fn err_into<E>(self) -> ErrInto<Self, E> where
Self::Error: Into<E>,

fn map_ok<T, F>(self, f: F) -> MapOk<Self, F> where
F: FnMut(Self::Ok) -> T,

fn map_err<E, F>(self, f: F) -> MapErr<Self, F> where
F: FnMut(Self::Error) -> E,

fn and_then<Fut, F>(self, f: F) -> AndThen<Self, Fut, F> where
F: FnMut(Self::Ok) -> Fut,
Fut: TryFuture<Error = Self::Error>,

fn or_else<Fut, F>(self, f: F) -> OrElse<Self, Fut, F> where
F: FnMut(Self::Error) -> Fut,
Fut: TryFuture<Ok = Self::Ok>,

fn inspect_ok<F>(self, f: F) -> InspectOk<Self, F> where
F: FnMut(&Self::Ok),

fn inspect_err<F>(self, f: F) -> InspectErr<Self, F> where
F: FnMut(&Self::Error),

fn try_next(&mut self) -> TryNext<'_, Self> where
Self: Unpin,

fn try_for_each<Fut, F>(self, f: F) -> TryForEach<Self, Fut, F> where
F: FnMut(Self::Ok) -> Fut,
Fut: TryFuture<Ok = (), Error = Self::Error>,

fn try_skip_while<Fut, F>(self, f: F) -> TrySkipWhile<Self, Fut, F> where
F: FnMut(&Self::Ok) -> Fut,
Fut: TryFuture<Ok = bool, Error = Self::Error>,

fn try_take_while<Fut, F>(self, f: F) -> TryTakeWhile<Self, Fut, F> where
F: FnMut(&Self::Ok) -> Fut,
Fut: TryFuture<Ok = bool, Error = Self::Error>,

fn try_for_each_concurrent<Fut, F>(
self,
limit: impl Into<Option<usize>>,
f: F
) -> TryForEachConcurrent<Self, Fut, F> where
F: FnMut(Self::Ok) -> Fut,
Fut: Future<Output = Result<(), Self::Error>>,

fn try_collect<C>(self) -> TryCollect<Self, C> where
C: Default + Extend<Self::Ok>,

fn try_filter<Fut, F>(self, f: F) -> TryFilter<Self, Fut, F> where
Fut: Future<Output = bool>,
F: FnMut(&Self::Ok) -> Fut,

fn try_filter_map<Fut, F, T>(self, f: F) -> TryFilterMap<Self, Fut, F> where
Fut: TryFuture<Ok = Option<T>, Error = Self::Error>,
F: FnMut(Self::Ok) -> Fut,

fn try_flatten(self) -> TryFlatten<Self> where
Self::Ok: TryStream,
<Self::Ok as TryStream>::Error: From<Self::Error>,

fn try_fold<T, Fut, F>(self, init: T, f: F) -> TryFold<Self, Fut, T, F> where
F: FnMut(T, Self::Ok) -> Fut,
Fut: TryFuture<Ok = T, Error = Self::Error>,

fn try_concat(self) -> TryConcat<Self> where
Self::Ok: Extend<<Self::Ok as IntoIterator>::Item>,
Self::Ok: IntoIterator,
Self::Ok: Default,

fn try_buffer_unordered(self, n: usize) -> TryBufferUnordered<Self> where
Self::Ok: TryFuture,
<Self::Ok as TryFuture>::Error == Self::Error,

fn try_buffered(self, n: usize) -> TryBuffered<Self> where
Self::Ok: TryFuture,
<Self::Ok as TryFuture>::Error == Self::Error,

fn try_poll_next_unpin(
&mut self,
cx: &mut Context<'_>
) -> Poll<Option<Result<Self::Ok, Self::Error>>> where
Self: Unpin,

impl<V, T> VZip<V> for T where
V: MultiLane<T>,

fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self> where
S: Into<Dispatch>,