pub struct UnboundedSender<T>(/* private fields */);
Expand description

The transmission end of an unbounded mpsc channel.

This value is created by the [unbounded] function.

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impl<T> UnboundedSender<T>

pub fn poll_ready(&self, _: &mut Context<'_>) -> Poll<Result<(), SendError>>

Check if the channel is ready to receive a message.

pub fn is_closed(&self) -> bool

Returns whether this channel is closed without needing a context.

pub fn close_channel(&self)

Closes this channel from the sender side, preventing any new messages.

pub fn disconnect(&mut self)

Disconnects this sender from the channel, closing it if there are no more senders left.

pub fn start_send(&mut self, msg: T) -> Result<(), SendError>

Send a message on the channel.

This method should only be called after poll_ready has been used to verify that the channel is ready to receive a message.

pub fn unbounded_send(&self, msg: T) -> Result<(), TrySendError<T>>

Sends a message along this channel.

This is an unbounded sender, so this function differs from Sink::send by ensuring the return type reflects that the channel is always ready to receive messages.

pub fn same_receiver(&self, other: &UnboundedSender<T>) -> bool

Returns whether the senders send to the same receiver.

pub fn is_connected_to(&self, receiver: &UnboundedReceiver<T>) -> bool

Returns whether the sender send to this receiver.

pub fn hash_receiver<H>(&self, hasher: &mut H)where H: Hasher,

Hashes the receiver into the provided hasher

pub fn len(&self) -> usize

Return the number of messages in the queue or 0 if channel is disconnected.

pub fn is_empty(&self) -> bool

Return false is channel has no queued messages, true otherwise.

Trait Implementations§

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impl<T> Clone for UnboundedSender<T>

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fn clone(&self) -> UnboundedSender<T>

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl<T> Debug for UnboundedSender<T>

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

Formats the value using the given formatter. Read more
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impl<T> Sink<T> for &UnboundedSender<T>

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type Error = SendError

The type of value produced by the sink when an error occurs.
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fn poll_ready( self: Pin<&mut &UnboundedSender<T>>, cx: &mut Context<'_> ) -> Poll<Result<(), <&UnboundedSender<T> as Sink<T>>::Error>>

Attempts to prepare the Sink to receive a value. Read more
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fn start_send( self: Pin<&mut &UnboundedSender<T>>, msg: T ) -> Result<(), <&UnboundedSender<T> as Sink<T>>::Error>

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 Poll::Ready(Ok(())). Read more
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fn poll_flush( self: Pin<&mut &UnboundedSender<T>>, _: &mut Context<'_> ) -> Poll<Result<(), <&UnboundedSender<T> as Sink<T>>::Error>>

Flush any remaining output from this sink. Read more
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fn poll_close( self: Pin<&mut &UnboundedSender<T>>, _: &mut Context<'_> ) -> Poll<Result<(), <&UnboundedSender<T> as Sink<T>>::Error>>

Flush any remaining output and close this sink, if necessary. Read more
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impl<T> Sink<T> for UnboundedSender<T>

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type Error = SendError

The type of value produced by the sink when an error occurs.
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fn poll_ready( self: Pin<&mut UnboundedSender<T>>, cx: &mut Context<'_> ) -> Poll<Result<(), <UnboundedSender<T> as Sink<T>>::Error>>

Attempts to prepare the Sink to receive a value. Read more
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fn start_send( self: Pin<&mut UnboundedSender<T>>, msg: T ) -> Result<(), <UnboundedSender<T> as Sink<T>>::Error>

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 Poll::Ready(Ok(())). Read more
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fn poll_flush( self: Pin<&mut UnboundedSender<T>>, _: &mut Context<'_> ) -> Poll<Result<(), <UnboundedSender<T> as Sink<T>>::Error>>

Flush any remaining output from this sink. Read more
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fn poll_close( self: Pin<&mut UnboundedSender<T>>, _: &mut Context<'_> ) -> Poll<Result<(), <UnboundedSender<T> as Sink<T>>::Error>>

Flush any remaining output and close this sink, if necessary. Read more

Auto Trait Implementations§

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impl<T> !RefUnwindSafe for UnboundedSender<T>

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impl<T> Send for UnboundedSender<T>where T: Send,

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impl<T> Sync for UnboundedSender<T>where T: Send,

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impl<T> Unpin for UnboundedSender<T>

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impl<T> !UnwindSafe for UnboundedSender<T>

Blanket Implementations§

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impl<T> Any for Twhere T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for Twhere T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for Twhere T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> Downcast for Twhere T: Any,

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fn into_any(self: Box<T>) -> Box<dyn Any>

Convert Box<dyn Trait> (where Trait: Downcast) to Box<dyn Any>. Box<dyn Any> can then be further downcast into Box<ConcreteType> where ConcreteType implements Trait.
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fn into_any_rc(self: Rc<T>) -> Rc<dyn Any>

Convert Rc<Trait> (where Trait: Downcast) to Rc<Any>. Rc<Any> can then be further downcast into Rc<ConcreteType> where ConcreteType implements Trait.
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fn as_any(&self) -> &(dyn Any + 'static)

Convert &Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &Any’s vtable from &Trait’s.
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fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)

Convert &mut Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &mut Any’s vtable from &mut Trait’s.
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impl<T> DowncastSync for Twhere T: Any + Send + Sync,

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fn into_any_arc(self: Arc<T>) -> Arc<dyn Any + Send + Sync>

Convert Arc<Trait> (where Trait: Downcast) to Arc<Any>. Arc<Any> can then be further downcast into Arc<ConcreteType> where ConcreteType implements Trait.
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided [Span], returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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impl<T, U> Into<U> for Twhere U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> Pointable for T

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const ALIGN: usize = _

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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impl<T> Same for T

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type Output = T

Should always be Self
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impl<T, Item> SinkExt<Item> for Twhere T: Sink<Item> + ?Sized,

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fn with<U, Fut, F, E>(self, f: F) -> With<Self, Item, U, Fut, F>where F: FnMut(U) -> Fut, Fut: Future<Output = Result<Item, E>>, E: From<Self::Error>, Self: Sized,

Composes a function in front of the sink. Read more
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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>>, Self: Sized,

Composes a function in front of the sink. Read more
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fn sink_map_err<E, F>(self, f: F) -> SinkMapErr<Self, F>where F: FnOnce(Self::Error) -> E, Self: Sized,

Transforms the error returned by the sink.
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fn sink_err_into<E>(self) -> SinkErrInto<Self, Item, E>where Self: Sized, Self::Error: Into<E>,

Map this sink’s error to a different error type using the Into trait. Read more
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fn buffer(self, capacity: usize) -> Buffer<Self, Item>where Self: Sized,

Adds a fixed-size buffer to the current sink. Read more
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fn close(&mut self) -> Close<'_, Self, Item>where Self: Unpin,

Close the sink.
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fn fanout<Si>(self, other: Si) -> Fanout<Self, Si>where Self: Sized, Item: Clone, Si: Sink<Item, Error = Self::Error>,

Fanout items to multiple sinks. Read more
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fn flush(&mut self) -> Flush<'_, Self, Item>where Self: Unpin,

Flush the sink, processing all pending items. Read more
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fn send(&mut self, item: Item) -> Send<'_, Self, Item>where Self: Unpin,

A future that completes after the given item has been fully processed into the sink, including flushing. Read more
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fn feed(&mut self, item: Item) -> Feed<'_, Self, Item>where Self: Unpin,

A future that completes after the given item has been received by the sink. Read more
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fn send_all<St, 'a>(&'a mut self, stream: &'a mut St) -> SendAll<'a, Self, St>where St: TryStream<Ok = Item, Error = Self::Error> + Stream + Unpin + ?Sized, Self: Unpin,

A future that completes after the given stream has been fully processed into the sink, including flushing. Read more
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fn left_sink<Si2>(self) -> Either<Self, Si2>where Si2: Sink<Item, Error = Self::Error>, Self: Sized,

Wrap this sink in an Either sink, making it the left-hand variant of that Either. Read more
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fn right_sink<Si1>(self) -> Either<Si1, Self>where Si1: Sink<Item, Error = Self::Error>, Self: Sized,

Wrap this stream in an Either stream, making it the right-hand variant of that Either. Read more
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fn poll_ready_unpin( &mut self, cx: &mut Context<'_> ) -> Poll<Result<(), Self::Error>>where Self: Unpin,

A convenience method for calling [Sink::poll_ready] on Unpin sink types.
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fn start_send_unpin(&mut self, item: Item) -> Result<(), Self::Error>where Self: Unpin,

A convenience method for calling [Sink::start_send] on Unpin sink types.
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fn poll_flush_unpin( &mut self, cx: &mut Context<'_> ) -> Poll<Result<(), Self::Error>>where Self: Unpin,

A convenience method for calling [Sink::poll_flush] on Unpin sink types.
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fn poll_close_unpin( &mut self, cx: &mut Context<'_> ) -> Poll<Result<(), Self::Error>>where Self: Unpin,

A convenience method for calling [Sink::poll_close] on Unpin sink types.
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impl<T, O> SuperFrom<T> for Owhere O: From<T>,

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fn super_from(input: T) -> O

Convert from a type to another type.
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impl<T, O, M> SuperInto<O, M> for Twhere O: SuperFrom<T, M>,

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fn super_into(self) -> O

Convert from a type to another type.
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impl<T> To for Twhere T: ?Sized,

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fn to<T>(self) -> Twhere Self: Into<T>,

Converts to T by calling Into<T>::into.
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fn try_to<T>(self) -> Result<T, Self::Error>where Self: TryInto<T>,

Tries to convert to T by calling TryInto<T>::try_into.
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impl<T> ToOwned for Twhere T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for Twhere U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<V, T> VZip<V> for Twhere V: MultiLane<T>,

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fn vzip(self) -> V

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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a [WithDispatch] wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a [WithDispatch] wrapper. Read more
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impl<T> CloneAny for Twhere T: Any + Clone,