[−][src]Struct tokio::sync::watch::Sender
Sends values to the associated Receiver
.
Instances are created by the channel
function.
Methods
impl<T> Sender<T>
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pub fn broadcast(&self, value: T) -> Result<(), SendError<T>>
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Broadcast a new value via the channel, notifying all receivers.
pub fn closed(&'_ mut self) -> impl Future<Output = ()>
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Completes when all receivers have dropped.
This allows the producer to get notified when interest in the produced values is canceled and immediately stop doing work.
Trait Implementations
impl<T> Sink<T> for Sender<T>
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type Error = SendError<T>
The type of value produced by the sink when an error occurs.
fn poll_ready(
self: Pin<&mut Sender<T>>,
_cx: &mut Context
) -> Poll<Result<(), <Sender<T> as Sink<T>>::Error>>
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self: Pin<&mut Sender<T>>,
_cx: &mut Context
) -> Poll<Result<(), <Sender<T> as Sink<T>>::Error>>
fn start_send(
self: Pin<&mut Sender<T>>,
item: T
) -> Result<(), <Sender<T> as Sink<T>>::Error>
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self: Pin<&mut Sender<T>>,
item: T
) -> Result<(), <Sender<T> as Sink<T>>::Error>
fn poll_flush(
self: Pin<&mut Sender<T>>,
_cx: &mut Context
) -> Poll<Result<(), <Sender<T> as Sink<T>>::Error>>
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self: Pin<&mut Sender<T>>,
_cx: &mut Context
) -> Poll<Result<(), <Sender<T> as Sink<T>>::Error>>
fn poll_close(
self: Pin<&mut Sender<T>>,
_cx: &mut Context
) -> Poll<Result<(), <Sender<T> as Sink<T>>::Error>>
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self: Pin<&mut Sender<T>>,
_cx: &mut Context
) -> Poll<Result<(), <Sender<T> as Sink<T>>::Error>>
impl<T> Debug for Sender<T> where
T: Debug,
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T: Debug,
impl<T> Drop for Sender<T>
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Auto Trait Implementations
impl<T> Send for Sender<T> where
T: Send + Sync,
T: Send + Sync,
impl<T> Unpin for Sender<T>
impl<T> Sync for Sender<T> where
T: Send + Sync,
T: Send + Sync,
impl<T> !UnwindSafe for Sender<T>
impl<T> !RefUnwindSafe for Sender<T>
Blanket Implementations
impl<T> From<T> for T
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T, U> TryFrom<U> for T where
U: Into<T>,
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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>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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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>
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impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
ⓘImportant traits for &'_ mut Ffn borrow_mut(&mut self) -> &mut T
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impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T, Item> SinkExt<Item> for T where
T: Sink<Item> + ?Sized,
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T: Sink<Item> + ?Sized,
fn with<U, Fut, F, E>(self, f: F) -> With<Self, Item, U, Fut, F> where
E: From<Self::Error>,
F: FnMut(U) -> Fut,
Fut: Future<Output = Result<Item, E>>,
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E: From<Self::Error>,
F: FnMut(U) -> Fut,
Fut: Future<Output = Result<Item, E>>,
Composes a function in front of the sink. Read more
fn with_flat_map<U, St, F>(self, f: F) -> WithFlatMap<Self, Item, U, St, F> where
F: FnMut(U) -> St,
St: Stream<Item = Result<Item, Self::Error>>,
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F: FnMut(U) -> St,
St: Stream<Item = Result<Item, Self::Error>>,
Composes a function in front of the sink. Read more
fn sink_map_err<E, F>(self, f: F) -> SinkMapErr<Self, F> where
F: FnOnce(Self::Error) -> E,
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F: FnOnce(Self::Error) -> E,
Transforms the error returned by the sink.
fn sink_err_into<E>(self) -> SinkErrInto<Self, Item, E> where
Self::Error: Into<E>,
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Self::Error: Into<E>,
Map this sink's error to a different error type using the Into
trait. Read more
fn buffer(self, capacity: usize) -> Buffer<Self, Item>
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Adds a fixed-size buffer to the current sink. Read more
ⓘImportant traits for Close<'_, Si, Item>fn close(&mut self) -> Close<Self, Item> where
Self: Unpin,
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Self: Unpin,
Close the sink.
fn fanout<Si>(self, other: Si) -> Fanout<Self, Si> where
Item: Clone,
Si: Sink<Item, Error = Self::Error>,
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Item: Clone,
Si: Sink<Item, Error = Self::Error>,
Fanout items to multiple sinks. Read more
ⓘImportant traits for Flush<'_, Si, Item>fn flush(&mut self) -> Flush<Self, Item> where
Self: Unpin,
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Self: Unpin,
Flush the sync, processing all pending items. Read more
ⓘImportant traits for Send<'_, Si, Item>fn send(&mut self, item: Item) -> Send<Self, Item> where
Self: Unpin,
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Self: Unpin,
A future that completes after the given item has been fully processed into the sink, including flushing. Read more
ⓘImportant traits for SendAll<'_, Si, St>fn send_all<St>(&'a mut self, stream: &'a mut St) -> SendAll<'a, Self, St> where
Self: Unpin,
St: Stream<Item = Item> + Unpin,
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Self: Unpin,
St: Stream<Item = Item> + Unpin,
A future that completes after the given stream has been fully processed into the sink, including flushing. Read more
ⓘImportant traits for Either<A, B>fn left_sink<Si2>(self) -> Either<Self, Si2> where
Si2: Sink<Item, Error = Self::Error>,
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Si2: Sink<Item, Error = Self::Error>,
Wrap this sink in an Either
sink, making it the left-hand variant of that Either
. Read more
ⓘImportant traits for Either<A, B>fn right_sink<Si1>(self) -> Either<Si1, Self> where
Si1: Sink<Item, Error = Self::Error>,
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Si1: Sink<Item, Error = Self::Error>,
Wrap this stream in an Either
stream, making it the right-hand variant of that Either
. Read more