pub struct Fanout<A, B>{ /* private fields */ }
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.
Implementations§
Trait Implementations§
Source§impl<A, B> Sink for Fanout<A, B>
impl<A, B> Sink for Fanout<A, B>
Source§type SinkError = <A as Sink>::SinkError
type SinkError = <A as Sink>::SinkError
The type of value produced by the sink when an error occurs.
Source§fn poll_ready(
&mut self,
cx: &mut Context<'_>,
) -> Result<Async<()>, <Fanout<A, B> as Sink>::SinkError>
fn poll_ready( &mut self, cx: &mut Context<'_>, ) -> Result<Async<()>, <Fanout<A, B> as Sink>::SinkError>
Attempts to prepare the
Sink
to receive a value. Read moreSource§fn start_send(
&mut self,
item: <Fanout<A, B> as Sink>::SinkItem,
) -> Result<(), <Fanout<A, B> as Sink>::SinkError>
fn start_send( &mut self, item: <Fanout<A, B> as Sink>::SinkItem, ) -> Result<(), <Fanout<A, B> as Sink>::SinkError>
Begin the process of sending a value to the sink.
Each call to this function must be preceded by a successful call to
poll_ready
which returned Ok(Async::Ready(()))
. Read moreAuto Trait Implementations§
impl<A, B> Freeze for Fanout<A, B>
impl<A, B> RefUnwindSafe for Fanout<A, B>where
A: RefUnwindSafe,
B: RefUnwindSafe,
impl<A, B> Send for Fanout<A, B>
impl<A, B> Sync for Fanout<A, B>
impl<A, B> Unpin for Fanout<A, B>
impl<A, B> UnwindSafe for Fanout<A, B>where
A: UnwindSafe,
B: UnwindSafe,
Blanket Implementations§
Source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
Source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
Source§impl<T> CloneToUninit for Twhere
T: Clone,
impl<T> CloneToUninit for Twhere
T: Clone,
Source§unsafe fn clone_to_uninit(&self, dst: *mut T)
unsafe fn clone_to_uninit(&self, dst: *mut T)
🔬This is a nightly-only experimental API. (
clone_to_uninit
)Source§impl<T> IntoEither for T
impl<T> IntoEither for T
Source§fn into_either(self, into_left: bool) -> Either<Self, Self> ⓘ
fn into_either(self, into_left: bool) -> Either<Self, Self> ⓘ
Converts
self
into a Left
variant of Either<Self, Self>
if into_left
is true
.
Converts self
into a Right
variant of Either<Self, Self>
otherwise. Read moreSource§fn into_either_with<F>(self, into_left: F) -> Either<Self, Self> ⓘ
fn into_either_with<F>(self, into_left: F) -> Either<Self, Self> ⓘ
Converts
self
into a Left
variant of Either<Self, Self>
if into_left(&self)
returns true
.
Converts self
into a Right
variant of Either<Self, Self>
otherwise. Read moreSource§impl<T> SinkExt for T
impl<T> SinkExt for T
Source§fn with<U, Fut, F>(self, f: F) -> With<Self, U, Fut, F>where
F: FnMut(U) -> Fut,
Fut: IntoFuture<Item = Self::SinkItem>,
<Fut as IntoFuture>::Error: From<Self::SinkError>,
Self: Sized,
fn with<U, Fut, F>(self, f: F) -> With<Self, U, Fut, F>where
F: FnMut(U) -> Fut,
Fut: IntoFuture<Item = Self::SinkItem>,
<Fut as IntoFuture>::Error: From<Self::SinkError>,
Self: Sized,
Composes a function in front of the sink. Read more
Source§fn with_flat_map<U, St, F>(self, f: F) -> WithFlatMap<Self, U, St, F>
fn with_flat_map<U, St, F>(self, f: F) -> WithFlatMap<Self, U, St, F>
Composes a function in front of the sink. Read more
Source§fn sink_map_err<E, F>(self, f: F) -> SinkMapErr<Self, F>
fn sink_map_err<E, F>(self, f: F) -> SinkMapErr<Self, F>
Transforms the error returned by the sink.
Source§fn sink_err_into<E>(self) -> SinkErrInto<Self, E>
fn sink_err_into<E>(self) -> SinkErrInto<Self, E>
Map this sink’s error to a different error type using the
Into
trait. Read moreSource§fn buffer(self, amt: usize) -> Buffer<Self>where
Self: Sized,
fn buffer(self, amt: usize) -> Buffer<Self>where
Self: Sized,
Adds a fixed-size buffer to the current sink. Read more
Source§fn flush(self) -> Flush<Self>where
Self: Sized,
fn flush(self) -> Flush<Self>where
Self: Sized,
Flush the sync, processing all pending items. Read more
Source§fn send(self, item: Self::SinkItem) -> Send<Self>where
Self: Sized,
fn send(self, item: Self::SinkItem) -> Send<Self>where
Self: Sized,
A future that completes after the given item has been fully processed
into the sink, including flushing. Read more
Source§fn send_all<S>(self, stream: S) -> SendAll<Self, S>
fn send_all<S>(self, stream: S) -> SendAll<Self, S>
A future that completes after the given stream has been fully processed
into the sink, including flushing. Read more