Struct websocket::async::futures::sink::Fanout

[+] Show declaration

pub struct Fanout<A, B> where
    A: Sink,
    B: Sink,  { /* fields omitted */ }

[−] Expand description

Sink that clones incoming items and forwards them to two sinks at the same time.

Backpressure from any downstream sink propagates up, which means that this sink can only process items as fast as its slowest downstream sink.

Methods

impl<A, B> Fanout<A, B> where     A: Sink,     B: Sink,

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pub fn into_inner(self) -> (A, B)

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Consumes this combinator, returning the underlying sinks.

Note that this may discard intermediate state of this combinator, so care should be taken to avoid losing resources when this is called.

Trait Implementations

impl<A, B> Sink for Fanout<A, B> where     A: Sink,     B: Sink<SinkItem = <A as Sink>::SinkItem, SinkError = <A as Sink>::SinkError>,     <A as Sink>::SinkItem: Clone,

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type SinkItem = <A as Sink>::SinkItem

The type of value that the sink accepts.

type SinkError = <A as Sink>::SinkError

The type of value produced by the sink when an error occurs.

fn start_send(     &mut self,     item: <Fanout<A, B> as Sink>::SinkItem ) -> Result<AsyncSink<<Fanout<A, B> as Sink>::SinkItem>, <Fanout<A, B> as Sink>::SinkError>

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Begin the process of sending a value to the sink.

fn poll_complete(     &mut self ) -> Result<Async<()>, <Fanout<A, B> as Sink>::SinkError>

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Flush all output from this sink, if necessary.

fn close(&mut self) -> Result<Async<()>, <Fanout<A, B> as Sink>::SinkError>

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A method to indicate that no more values will ever be pushed into this sink.

fn wait(self) -> Wait<Self>

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Creates a new object which will produce a synchronous sink.

fn with<U, F, Fut>(self, f: F) -> With<Self, U, F, Fut> where     F: FnMut(U) -> Fut,     Fut: IntoFuture<Item = Self::SinkItem>,     <Fut as IntoFuture>::Error: From<Self::SinkError>,

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Composes a function in front of the sink.

fn with_flat_map<U, F, St>(self, f: F) -> WithFlatMap<Self, U, F, St> where     F: FnMut(U) -> St,     St: Stream<Item = Self::SinkItem, Error = Self::SinkError>,

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Composes a function in front of the sink.

fn sink_map_err<F, E>(self, f: F) -> SinkMapErr<Self, F> where     F: FnOnce(Self::SinkError) -> E,

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Transforms the error returned by the sink.

fn sink_from_err<E>(self) -> SinkFromErr<Self, E> where     E: From<Self::SinkError>,

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Map this sink's error to any error implementing From for this sink's Error, returning a new sink.

fn buffer(self, amt: usize) -> Buffer<Self>

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Adds a fixed-size buffer to the current sink.

fn fanout<S>(self, other: S) -> Fanout<Self, S> where     S: Sink<SinkItem = Self::SinkItem, SinkError = Self::SinkError>,     Self::SinkItem: Clone,

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Fanout items to multiple sinks.

fn flush(self) -> Flush<Self>

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A future that completes when the sink has finished processing all pending requests.

fn send(self, item: Self::SinkItem) -> Send<Self>

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A future that completes after the given item has been fully processed into the sink, including flushing.

fn send_all<S>(self, stream: S) -> SendAll<Self, S> where     S: Stream<Item = Self::SinkItem>,     Self::SinkError: From<<S as Stream>::Error>,

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A future that completes after the given stream has been fully processed into the sink, including flushing.

impl<A, B> Debug for Fanout<A, B> where     A: Sink + Debug,     B: Sink + Debug,     <A as Sink>::SinkItem: Debug,     <B as Sink>::SinkItem: Debug,

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

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Formats the value using the given formatter.