[−][src]Struct futures::stream::SelectAll
An unbounded set of streams
This "combinator" provides the ability to maintain a set of streams and drive them all to completion.
Streams are pushed into this set and their realized values are yielded as they become ready. Streams will only be polled when they generate notifications. This allows to coordinate a large number of streams.
Note that you can create a ready-made SelectAll via the
select_all function in the stream module, or you can start with an
empty set with the SelectAll::new constructor.
Methods
impl<St> SelectAll<St> where
St: Unpin + Stream, [src]
St: Unpin + Stream,
pub fn new() -> SelectAll<St>[src]
Constructs a new, empty SelectAll
The returned SelectAll does not contain any streams and, in this
state, SelectAll::poll will return Poll::Ready(None).
pub fn len(&self) -> usize[src]
Returns the number of streams contained in the set.
This represents the total number of in-flight streams.
pub fn is_empty(&self) -> bool[src]
Returns true if the set contains no streams
pub fn push(&mut self, stream: St)[src]
Push a stream into the set.
This function submits the given stream to the set for managing. This
function will not call poll on the submitted stream. The caller must
ensure that SelectAll::poll is called in order to receive task
notifications.
Trait Implementations
impl<St> FromIterator<St> for SelectAll<St> where
St: Unpin + Stream, [src]
St: Unpin + Stream,
fn from_iter<T>(iter: T) -> SelectAll<St> where
T: IntoIterator<Item = St>, [src]
T: IntoIterator<Item = St>,
impl<St> Default for SelectAll<St> where
St: Unpin + Stream, [src]
St: Unpin + Stream,
impl<St> Stream for SelectAll<St> where
St: Unpin + Stream, [src]
St: Unpin + Stream,
type Item = <St as Stream>::Item
Values yielded by the stream.
fn poll_next(
self: Pin<&mut SelectAll<St>>,
cx: &mut Context
) -> Poll<Option<<SelectAll<St> as Stream>::Item>>[src]
self: Pin<&mut SelectAll<St>>,
cx: &mut Context
) -> Poll<Option<<SelectAll<St> as Stream>::Item>>
fn size_hint(&self) -> (usize, Option<usize>)[src]
impl<St> FusedStream for SelectAll<St> where
St: Unpin + Stream, [src]
St: Unpin + Stream,
fn is_terminated(&self) -> bool[src]
impl<St> Debug for SelectAll<St> where
St: Debug, [src]
St: Debug,
Auto Trait Implementations
impl<St> Send for SelectAll<St> where
St: Send,
St: Send,
impl<St> Unpin for SelectAll<St>
impl<St> Sync for SelectAll<St> where
St: Sync,
St: Sync,
impl<St> !UnwindSafe for SelectAll<St>
impl<St> !RefUnwindSafe for SelectAll<St>
Blanket Implementations
impl<T, U> Into<U> for T where
U: From<T>, [src]
U: From<T>,
impl<T> From<T> for T[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.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>[src]
impl<T, U> TryInto<U> for T where
U: TryFrom<T>, [src]
U: TryFrom<T>,
type Error = <U as TryFrom<T>>::Error
The type returned in the event of a conversion error.
fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>[src]
impl<T> BorrowMut<T> for T where
T: ?Sized, [src]
T: ?Sized,
ⓘImportant traits for &'_ mut Ffn borrow_mut(&mut self) -> &mut T[src]
ⓘImportant traits for &'_ mut F
impl<T> Borrow<T> for T where
T: ?Sized, [src]
T: ?Sized,
impl<T> Any for T where
T: 'static + ?Sized, [src]
T: 'static + ?Sized,
impl<S, T, E> TryStream for S where
S: Stream<Item = Result<T, E>> + ?Sized, [src]
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
fn try_poll_next(
self: Pin<&mut S>,
cx: &mut Context
) -> Poll<Option<Result<<S as TryStream>::Ok, <S as TryStream>::Error>>>[src]
self: Pin<&mut S>,
cx: &mut Context
) -> Poll<Option<Result<<S as TryStream>::Ok, <S as TryStream>::Error>>>
impl<T> StreamExt for T where
T: Stream + ?Sized, [src]
T: Stream + ?Sized,
ⓘImportant traits for Next<'_, St>fn next(&mut self) -> Next<Self> where
Self: Unpin, [src]
ⓘImportant traits for Next<'_, St>
Self: Unpin,
ⓘImportant traits for StreamFuture<St>fn into_future(self) -> StreamFuture<Self> where
Self: Unpin, [src]
ⓘImportant traits for StreamFuture<St>
Self: Unpin,
fn map<T, F>(self, f: F) -> Map<Self, F> where
F: FnMut(Self::Item) -> T, [src]
F: FnMut(Self::Item) -> T,
fn enumerate(self) -> Enumerate<Self>[src]
fn filter<Fut, F>(self, f: F) -> Filter<Self, Fut, F> where
F: FnMut(&Self::Item) -> Fut,
Fut: Future<Output = bool>, [src]
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>>, [src]
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, [src]
F: FnMut(Self::Item) -> Fut,
Fut: Future,
ⓘImportant traits for Collect<St, C>fn collect<C>(self) -> Collect<Self, C> where
C: Default + Extend<Self::Item>, [src]
ⓘImportant traits for Collect<St, C>
C: Default + Extend<Self::Item>,
ⓘImportant traits for Concat<St>fn concat(self) -> Concat<Self> where
Self::Item: Extend<<Self::Item as IntoIterator>::Item>,
Self::Item: IntoIterator,
Self::Item: Default, [src]
ⓘImportant traits for Concat<St>
Self::Item: Extend<<Self::Item as IntoIterator>::Item>,
Self::Item: IntoIterator,
Self::Item: Default,
ⓘImportant traits for Fold<St, Fut, T, F>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>, [src]
ⓘImportant traits for Fold<St, Fut, T, F>
F: FnMut(T, Self::Item) -> Fut,
Fut: Future<Output = T>,
fn flatten(self) -> Flatten<Self> where
Self::Item: Stream, [src]
Self::Item: Stream,
fn skip_while<Fut, F>(self, f: F) -> SkipWhile<Self, Fut, F> where
F: FnMut(&Self::Item) -> Fut,
Fut: Future<Output = bool>, [src]
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>, [src]
F: FnMut(&Self::Item) -> Fut,
Fut: Future<Output = bool>,
ⓘImportant traits for ForEach<St, Fut, F>fn for_each<Fut, F>(self, f: F) -> ForEach<Self, Fut, F> where
F: FnMut(Self::Item) -> Fut,
Fut: Future<Output = ()>, [src]
ⓘImportant traits for ForEach<St, Fut, F>
F: FnMut(Self::Item) -> Fut,
Fut: Future<Output = ()>,
ⓘImportant traits for ForEachConcurrent<St, Fut, F>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 = ()>, [src]
ⓘImportant traits for ForEachConcurrent<St, 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: u64) -> Take<Self>[src]
fn skip(self, n: u64) -> Skip<Self>[src]
fn fuse(self) -> Fuse<Self>[src]
ⓘImportant traits for &'_ mut Ffn by_ref(&mut self) -> &mut Self[src]
ⓘImportant traits for &'_ mut F
fn catch_unwind(self) -> CatchUnwind<Self> where
Self: UnwindSafe, [src]
Self: UnwindSafe,
ⓘImportant traits for Pin<P>fn boxed<'a>(self) -> Pin<Box<dyn Stream<Item = Self::Item> + 'a + Send>> where
Self: Send + 'a, [src]
ⓘImportant traits for Pin<P>
Self: Send + 'a,
ⓘImportant traits for Pin<P>fn boxed_local<'a>(self) -> Pin<Box<dyn Stream<Item = Self::Item> + 'a>> where
Self: 'a, [src]
ⓘImportant traits for Pin<P>
Self: 'a,
fn buffered(self, n: usize) -> Buffered<Self> where
Self::Item: Future, [src]
Self::Item: Future,
fn buffer_unordered(self, n: usize) -> BufferUnordered<Self> where
Self::Item: Future, [src]
Self::Item: Future,
fn zip<St>(self, other: St) -> Zip<Self, St> where
St: Stream, [src]
St: Stream,
fn chain<St>(self, other: St) -> Chain<Self, St> where
St: Stream<Item = Self::Item>, [src]
St: Stream<Item = Self::Item>,
fn peekable(self) -> Peekable<Self>[src]
fn chunks(self, capacity: usize) -> Chunks<Self>[src]
ⓘImportant traits for Forward<St, Si>fn forward<S>(self, sink: S) -> Forward<Self, S> where
S: Sink<Self::Ok>,
Self: TryStream<Error = <S as Sink<Self::Ok>>::Error>, [src]
ⓘImportant traits for Forward<St, Si>
S: Sink<Self::Ok>,
Self: TryStream<Error = <S as Sink<Self::Ok>>::Error>,
fn split<Item>(self) -> (SplitSink<Self, Item>, SplitStream<Self>) where
Self: Sink<Item>, [src]
Self: Sink<Item>,
fn inspect<F>(self, f: F) -> Inspect<Self, F> where
F: FnMut(&Self::Item), [src]
F: FnMut(&Self::Item),
ⓘImportant traits for Either<A, B>fn left_stream<B>(self) -> Either<Self, B> where
B: Stream<Item = Self::Item>, [src]
ⓘImportant traits for Either<A, B>
B: Stream<Item = Self::Item>,
ⓘImportant traits for Either<A, B>fn right_stream<B>(self) -> Either<B, Self> where
B: Stream<Item = Self::Item>, [src]
ⓘImportant traits for Either<A, B>
B: Stream<Item = Self::Item>,
fn poll_next_unpin(&mut self, cx: &mut Context) -> Poll<Option<Self::Item>> where
Self: Unpin, [src]
Self: Unpin,
ⓘImportant traits for SelectNextSome<'_, St>fn select_next_some(&mut self) -> SelectNextSome<Self> where
Self: Unpin + FusedStream, [src]
ⓘImportant traits for SelectNextSome<'_, St>
Self: Unpin + FusedStream,
impl<S> TryStreamExt for S where
S: TryStream + ?Sized, [src]
S: TryStream + ?Sized,
fn err_into<E>(self) -> ErrInto<Self, E> where
Self::Error: Into<E>, [src]
Self::Error: Into<E>,
fn map_ok<T, F>(self, f: F) -> MapOk<Self, F> where
F: FnMut(Self::Ok) -> T, [src]
F: FnMut(Self::Ok) -> T,
fn map_err<E, F>(self, f: F) -> MapErr<Self, F> where
F: FnMut(Self::Error) -> E, [src]
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>, [src]
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>, [src]
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), [src]
F: FnMut(&Self::Ok),
fn inspect_err<F>(self, f: F) -> InspectErr<Self, F> where
F: FnMut(&Self::Error), [src]
F: FnMut(&Self::Error),
fn into_stream(self) -> IntoStream<Self>[src]
ⓘImportant traits for TryNext<'_, St>fn try_next(&mut self) -> TryNext<Self> where
Self: Unpin, [src]
ⓘImportant traits for TryNext<'_, St>
Self: Unpin,
ⓘImportant traits for TryForEach<St, Fut, F>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>, [src]
ⓘImportant traits for TryForEach<St, Fut, F>
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>, [src]
F: FnMut(&Self::Ok) -> Fut,
Fut: TryFuture<Ok = bool, Error = Self::Error>,
ⓘImportant traits for TryForEachConcurrent<St, Fut, F>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>>, [src]
ⓘImportant traits for TryForEachConcurrent<St, 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>>,
ⓘImportant traits for TryCollect<St, C>fn try_collect<C>(self) -> TryCollect<Self, C> where
C: Default + Extend<Self::Ok>, [src]
ⓘImportant traits for TryCollect<St, C>
C: Default + Extend<Self::Ok>,
fn try_filter<Fut, F>(self, f: F) -> TryFilter<Self, Fut, F> where
F: FnMut(&Self::Ok) -> Fut,
Fut: Future<Output = bool>, [src]
F: FnMut(&Self::Ok) -> Fut,
Fut: Future<Output = bool>,
fn try_filter_map<Fut, F, T>(self, f: F) -> TryFilterMap<Self, Fut, F> where
F: FnMut(Self::Ok) -> Fut,
Fut: TryFuture<Ok = Option<T>, Error = Self::Error>, [src]
F: FnMut(Self::Ok) -> Fut,
Fut: TryFuture<Ok = Option<T>, Error = Self::Error>,
fn try_flatten(self) -> TryFlatten<Self> where
Self::Ok: TryStream,
<Self::Ok as TryStream>::Error: From<Self::Error>, [src]
Self::Ok: TryStream,
<Self::Ok as TryStream>::Error: From<Self::Error>,
ⓘImportant traits for TryFold<St, Fut, T, F>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>, [src]
ⓘImportant traits for TryFold<St, Fut, T, F>
F: FnMut(T, Self::Ok) -> Fut,
Fut: TryFuture<Ok = T, Error = Self::Error>,
ⓘImportant traits for TryConcat<St>fn try_concat(self) -> TryConcat<Self> where
Self::Ok: Extend<<Self::Ok as IntoIterator>::Item>,
Self::Ok: IntoIterator,
Self::Ok: Default, [src]
ⓘImportant traits for TryConcat<St>
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, [src]
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, [src]
&mut self,
cx: &mut Context
) -> Poll<Option<Result<Self::Ok, Self::Error>>> where
Self: Unpin,
ⓘImportant traits for Compat<R>fn compat(self) -> Compat<Self> where
Self: Unpin, [src]
ⓘImportant traits for Compat<R>
Self: Unpin,
fn into_async_read(self) -> IntoAsyncRead<Self> where
Self: TryStreamExt<Error = Error> + Unpin,
Self::Ok: AsRef<[u8]>, [src]
Self: TryStreamExt<Error = Error> + Unpin,
Self::Ok: AsRef<[u8]>,