Struct flo_stream::SinglePublisher
source · pub struct SinglePublisher<Message> { /* private fields */ }
Expand description
A single publisher is a publisher that sends each message to only a single subscriber rather than all of them
This is useful for scheduling messages on the first available worker.
Implementations§
source§impl<Message> SinglePublisher<Message>
impl<Message> SinglePublisher<Message>
sourcepub fn new(buffer_size: usize) -> SinglePublisher<Message>
pub fn new(buffer_size: usize) -> SinglePublisher<Message>
Creates a new single publisher, which will buffer the specified number of messages
sourcepub fn count_subscribers(&self) -> usize
pub fn count_subscribers(&self) -> usize
Counts the number of subscribers in this publisher
Trait Implementations§
source§impl<Message> Drop for SinglePublisher<Message>
impl<Message> Drop for SinglePublisher<Message>
source§impl<Message> PublisherSink<Message> for SinglePublisher<Message>
impl<Message> PublisherSink<Message> for SinglePublisher<Message>
source§fn subscribe(&mut self) -> Subscriber<Message>
fn subscribe(&mut self) -> Subscriber<Message>
Subscribes to this publisher
Subscribers only receive messages sent to the publisher after they are created.
source§impl<Message> Sink for SinglePublisher<Message>
impl<Message> Sink for SinglePublisher<Message>
source§fn start_send(&mut self, item: Message) -> StartSend<Message, ()>
fn start_send(&mut self, item: Message) -> StartSend<Message, ()>
Begin the process of sending a value to the sink. Read more
source§fn poll_complete(&mut self) -> Poll<(), ()>
fn poll_complete(&mut self) -> Poll<(), ()>
Flush all output from this sink, if necessary. Read more
source§fn close(&mut self) -> Result<Async<()>, Self::SinkError>
fn close(&mut self) -> Result<Async<()>, Self::SinkError>
A method to indicate that no more values will ever be pushed into this
sink. Read more
source§fn wait(self) -> Wait<Self>where
Self: Sized,
fn wait(self) -> Wait<Self>where
Self: Sized,
Creates a new object which will produce a synchronous sink. Read more
source§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>,
Self: Sized,
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>,
Self: Sized,
Composes a function in front of the sink. Read more
source§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>,
Self: Sized,
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>,
Self: Sized,
Composes a function in front of the sink. Read more
source§fn sink_map_err<F, E>(self, f: F) -> SinkMapErr<Self, F>where
F: FnOnce(Self::SinkError) -> E,
Self: Sized,
fn sink_map_err<F, E>(self, f: F) -> SinkMapErr<Self, F>where
F: FnOnce(Self::SinkError) -> E,
Self: Sized,
Transforms the error returned by the sink.
source§fn sink_from_err<E>(self) -> SinkFromErr<Self, E>where
E: From<Self::SinkError>,
Self: Sized,
fn sink_from_err<E>(self) -> SinkFromErr<Self, E>where
E: From<Self::SinkError>,
Self: Sized,
Map this sink’s error to any error implementing
From
for this sink’s
Error
, returning a new sink. 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,
A future that completes when the sink has finished processing all
pending requests. Read more