Struct futures::channel::mpsc::UnboundedReceiver
source · pub struct UnboundedReceiver<T> { /* private fields */ }Expand description
The receiving end of an unbounded mpsc channel.
This value is created by the unbounded function.
Implementations§
source§impl<T> UnboundedReceiver<T>
impl<T> UnboundedReceiver<T>
sourcepub fn close(&mut self)
pub fn close(&mut self)
Closes the receiving half of a channel, without dropping it.
This prevents any further messages from being sent on the channel while still enabling the receiver to drain messages that are buffered.
sourcepub fn try_next(&mut self) -> Result<Option<T>, TryRecvError>
pub fn try_next(&mut self) -> Result<Option<T>, TryRecvError>
Tries to receive the next message without notifying a context if empty.
It is not recommended to call this function from inside of a future, only when you’ve otherwise arranged to be notified when the channel is no longer empty.
This function returns:
Ok(Some(t))when message is fetchedOk(None)when channel is closed and no messages left in the queueErr(e)when there are no messages available, but channel is not yet closed
Trait Implementations§
source§impl<T> Debug for UnboundedReceiver<T>
impl<T> Debug for UnboundedReceiver<T>
source§impl<T> Drop for UnboundedReceiver<T>
impl<T> Drop for UnboundedReceiver<T>
source§impl<T> FusedStream for UnboundedReceiver<T>
impl<T> FusedStream for UnboundedReceiver<T>
source§fn is_terminated(&self) -> bool
fn is_terminated(&self) -> bool
Returns
true if the stream should no longer be polled.source§impl<T> Stream for UnboundedReceiver<T>
impl<T> Stream for UnboundedReceiver<T>
impl<T> Unpin for UnboundedReceiver<T>
Auto Trait Implementations§
impl<T> !RefUnwindSafe for UnboundedReceiver<T>
impl<T> Send for UnboundedReceiver<T>where
T: Send,
impl<T> Sync for UnboundedReceiver<T>where
T: Send,
impl<T> !UnwindSafe for UnboundedReceiver<T>
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source§impl<T> StreamExt for Twhere
T: Stream + ?Sized,
impl<T> StreamExt for Twhere
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source§fn try_fold<T, Fut, F>(self, init: T, f: F) -> TryFold<Self, Fut, T, F> ⓘwhere
F: FnMut(T, Self::Ok) -> Fut,
Fut: TryFuture<Ok = T, Error = Self::Error>,
Self: Sized,
fn try_fold<T, Fut, F>(self, init: T, f: F) -> TryFold<Self, Fut, T, F> ⓘwhere
F: FnMut(T, Self::Ok) -> Fut,
Fut: TryFuture<Ok = T, Error = Self::Error>,
Self: Sized,
Attempt to execute an accumulating asynchronous computation over a
stream, collecting all the values into one final result. Read more
source§fn try_concat(self) -> TryConcat<Self> ⓘwhere
Self: Sized,
Self::Ok: Extend<<Self::Ok as IntoIterator>::Item> + IntoIterator + Default,
fn try_concat(self) -> TryConcat<Self> ⓘwhere
Self: Sized,
Self::Ok: Extend<<Self::Ok as IntoIterator>::Item> + IntoIterator + Default,
Attempt to concatenate all items of a stream into a single
extendable destination, returning a future representing the end result. Read more
source§fn try_buffer_unordered(self, n: usize) -> TryBufferUnordered<Self>where
Self::Ok: TryFuture<Error = Self::Error>,
Self: Sized,
fn try_buffer_unordered(self, n: usize) -> TryBufferUnordered<Self>where
Self::Ok: TryFuture<Error = Self::Error>,
Self: Sized,
Attempt to execute several futures from a stream concurrently (unordered). Read more
source§fn try_buffered(self, n: usize) -> TryBuffered<Self>where
Self::Ok: TryFuture<Error = Self::Error>,
Self: Sized,
fn try_buffered(self, n: usize) -> TryBuffered<Self>where
Self::Ok: TryFuture<Error = Self::Error>,
Self: Sized,
Attempt to execute several futures from a stream concurrently. Read more
source§fn try_poll_next_unpin(
&mut self,
cx: &mut Context<'_>
) -> Poll<Option<Result<Self::Ok, Self::Error>>>where
Self: Unpin,
fn try_poll_next_unpin(
&mut self,
cx: &mut Context<'_>
) -> Poll<Option<Result<Self::Ok, Self::Error>>>where
Self: Unpin,
A convenience method for calling
TryStream::try_poll_next on Unpin
stream types.source§fn into_async_read(self) -> IntoAsyncRead<Self>where
Self: Sized + TryStreamExt<Error = Error>,
Self::Ok: AsRef<[u8]>,
fn into_async_read(self) -> IntoAsyncRead<Self>where
Self: Sized + TryStreamExt<Error = Error>,
Self::Ok: AsRef<[u8]>,
Adapter that converts this stream into an
AsyncBufRead. Read more