Struct holochain::prelude::kitsune_p2p::dependencies::kitsune_p2p_types::dependencies::futures::channel::oneshot::Receiver
source · pub struct Receiver<T> { /* private fields */ }
Expand description
A future for a value that will be provided by another asynchronous task.
This is created by the channel
function.
Implementations§
source§impl<T> Receiver<T>
impl<T> Receiver<T>
sourcepub fn close(&mut self)
pub fn close(&mut self)
Gracefully close this receiver, preventing any subsequent attempts to send to it.
Any send
operation which happens after this method returns is
guaranteed to fail. After calling this method, you can use
Receiver::poll
to determine whether a
message had previously been sent.
sourcepub fn try_recv(&mut self) -> Result<Option<T>, Canceled>
pub fn try_recv(&mut self) -> Result<Option<T>, Canceled>
Attempts to receive a message outside of the context of a task.
Does not schedule a task wakeup or have any other side effects.
A return value of None
must be considered immediately stale (out of
date) unless close
has been called first.
Returns an error if the sender was dropped.
Trait Implementations§
source§impl<T> FusedFuture for Receiver<T>
impl<T> FusedFuture for Receiver<T>
source§fn is_terminated(&self) -> bool
fn is_terminated(&self) -> bool
Returns
true
if the underlying future should no longer be polled.impl<T> Unpin for Receiver<T>
Auto Trait Implementations§
impl<T> !RefUnwindSafe for Receiver<T>
impl<T> Send for Receiver<T>where
T: Send,
impl<T> Sync for Receiver<T>where
T: Send,
impl<T> !UnwindSafe for Receiver<T>
Blanket Implementations§
source§impl<T> ArchivePointee for T
impl<T> ArchivePointee for T
§type ArchivedMetadata = ()
type ArchivedMetadata = ()
The archived version of the pointer metadata for this type.
source§fn pointer_metadata(
_: &<T as ArchivePointee>::ArchivedMetadata
) -> <T as Pointee>::Metadata
fn pointer_metadata( _: &<T as ArchivePointee>::ArchivedMetadata ) -> <T as Pointee>::Metadata
Converts some archived metadata to the pointer metadata for itself.
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<F, W, T, D> Deserialize<With<T, W>, D> for F
impl<F, W, T, D> Deserialize<With<T, W>, D> for F
source§impl<F> FutureExt for F
impl<F> FutureExt for F
source§fn catch_unwind(self) -> CatchUnwind<Self> ⓘwhere
Self: Sized + UnwindSafe,
fn catch_unwind(self) -> CatchUnwind<Self> ⓘwhere
Self: Sized + UnwindSafe,
Catches panics while polling the future. Read more
source§impl<F> FutureExt for F
impl<F> FutureExt for F
source§fn catch_unwind(self) -> CatchUnwind<Self> ⓘwhere
Self: Sized + UnwindSafe,
fn catch_unwind(self) -> CatchUnwind<Self> ⓘwhere
Self: Sized + UnwindSafe,
Catches panics while polling the future. Read more
source§impl<T> FutureExt for T
impl<T> FutureExt for T
source§fn map<U, F>(self, f: F) -> Map<Self, F> ⓘ
fn map<U, F>(self, f: F) -> Map<Self, F> ⓘ
Map this future’s output to a different type, returning a new future of
the resulting type. Read more
source§fn map_into<U>(self) -> MapInto<Self, U> ⓘ
fn map_into<U>(self) -> MapInto<Self, U> ⓘ
Map this future’s output to a different type, returning a new future of
the resulting type. Read more
source§fn then<Fut, F>(self, f: F) -> Then<Self, Fut, F> ⓘ
fn then<Fut, F>(self, f: F) -> Then<Self, Fut, F> ⓘ
Chain on a computation for when a future finished, passing the result of
the future to the provided closure
f
. Read moresource§fn left_future<B>(self) -> Either<Self, B> ⓘ
fn left_future<B>(self) -> Either<Self, B> ⓘ
source§fn right_future<A>(self) -> Either<A, Self> ⓘ
fn right_future<A>(self) -> Either<A, Self> ⓘ
source§fn into_stream(self) -> IntoStream<Self>where
Self: Sized,
fn into_stream(self) -> IntoStream<Self>where
Self: Sized,
Convert this future into a single element stream. Read more
source§fn flatten(self) -> Flatten<Self> ⓘ
fn flatten(self) -> Flatten<Self> ⓘ
Flatten the execution of this future when the output of this
future is itself another future. Read more
source§fn flatten_stream(self) -> FlattenStream<Self>
fn flatten_stream(self) -> FlattenStream<Self>
Flatten the execution of this future when the successful result of this
future is a stream. Read more
source§fn fuse(self) -> Fuse<Self> ⓘwhere
Self: Sized,
fn fuse(self) -> Fuse<Self> ⓘwhere
Self: Sized,
Fuse a future such that
poll
will never again be called once it has
completed. This method can be used to turn any Future
into a
FusedFuture
. Read moresource§fn inspect<F>(self, f: F) -> Inspect<Self, F> ⓘ
fn inspect<F>(self, f: F) -> Inspect<Self, F> ⓘ
Do something with the output of a future before passing it on. Read more
source§fn catch_unwind(self) -> CatchUnwind<Self> ⓘwhere
Self: Sized + UnwindSafe,
fn catch_unwind(self) -> CatchUnwind<Self> ⓘwhere
Self: Sized + UnwindSafe,
Catches unwinding panics while polling the future. Read more
Create a cloneable handle to this future where all handles will resolve
to the same result. Read more
source§fn remote_handle(self) -> (Remote<Self>, RemoteHandle<Self::Output>)where
Self: Sized,
fn remote_handle(self) -> (Remote<Self>, RemoteHandle<Self::Output>)where
Self: Sized,
Turn this future into a future that yields
()
on completion and sends
its output to another future on a separate task. Read moresource§fn boxed<'a>(self) -> Pin<Box<dyn Future<Output = Self::Output> + Send + 'a>>
fn boxed<'a>(self) -> Pin<Box<dyn Future<Output = Self::Output> + Send + 'a>>
Wrap the future in a Box, pinning it. Read more
source§fn boxed_local<'a>(self) -> Pin<Box<dyn Future<Output = Self::Output> + 'a>>where
Self: Sized + 'a,
fn boxed_local<'a>(self) -> Pin<Box<dyn Future<Output = Self::Output> + 'a>>where
Self: Sized + 'a,
Wrap the future in a Box, pinning it. Read more
source§fn unit_error(self) -> UnitError<Self> ⓘwhere
Self: Sized,
fn unit_error(self) -> UnitError<Self> ⓘwhere
Self: Sized,
Turns a
Future<Output = T>
into a
TryFuture<Ok = T, Error = ()
>.source§fn never_error(self) -> NeverError<Self> ⓘwhere
Self: Sized,
fn never_error(self) -> NeverError<Self> ⓘwhere
Self: Sized,
Turns a
Future<Output = T>
into a
TryFuture<Ok = T, Error = Never
>.source§impl<T> FutureExt for T
impl<T> FutureExt for T
source§fn with_context(self, otel_cx: Context) -> WithContext<Self> ⓘ
fn with_context(self, otel_cx: Context) -> WithContext<Self> ⓘ
source§fn with_current_context(self) -> WithContext<Self> ⓘ
fn with_current_context(self) -> WithContext<Self> ⓘ
source§impl<T> FutureExt for T
impl<T> FutureExt for T
source§fn delay(self, dur: Duration) -> DelayFuture<Self>where
Self: Sized,
fn delay(self, dur: Duration) -> DelayFuture<Self>where
Self: Sized,
Returns a Future that delays execution for a specified time. Read more
source§fn flatten(self) -> FlattenFuture<Self, <Self::Output as IntoFuture>::Future>
fn flatten(self) -> FlattenFuture<Self, <Self::Output as IntoFuture>::Future>
Flatten out the execution of this future when the result itself
can be converted into another future. Read more
source§fn race<F>(self, other: F) -> Race<Self, F>
fn race<F>(self, other: F) -> Race<Self, F>
Waits for one of two similarly-typed futures to complete. Read more
source§fn try_race<F, T, E>(self, other: F) -> TryRace<Self, F>
fn try_race<F, T, E>(self, other: F) -> TryRace<Self, F>
Waits for one of two similarly-typed fallible futures to complete. Read more
source§fn join<F>(self, other: F) -> Join<Self, F>
fn join<F>(self, other: F) -> Join<Self, F>
Waits for two similarly-typed futures to complete. Read more
source§impl<T> Instrument for T
impl<T> Instrument for T
source§fn instrument(self, span: Span) -> Instrumented<Self> ⓘ
fn instrument(self, span: Span) -> Instrumented<Self> ⓘ
source§fn in_current_span(self) -> Instrumented<Self> ⓘ
fn in_current_span(self) -> Instrumented<Self> ⓘ
source§impl<T> Instrument for T
impl<T> Instrument for T
source§fn instrument(self, span: Span) -> Instrumented<Self> ⓘ
fn instrument(self, span: Span) -> Instrumented<Self> ⓘ
source§fn in_current_span(self) -> Instrumented<Self> ⓘ
fn in_current_span(self) -> Instrumented<Self> ⓘ
source§impl<F> IntoFuture for Fwhere
F: Future,
impl<F> IntoFuture for Fwhere
F: Future,
§type IntoFuture = F
type IntoFuture = F
Which kind of future are we turning this into?
source§fn into_future(self) -> <F as IntoFuture>::IntoFuture
fn into_future(self) -> <F as IntoFuture>::IntoFuture
Creates a future from a value. Read more
source§impl<T> IntoFuture for Twhere
T: Future,
impl<T> IntoFuture for Twhere
T: Future,
source§impl<T> IntoMustBoxFuture for T
impl<T> IntoMustBoxFuture for T
source§impl<T> LayoutRaw for T
impl<T> LayoutRaw for T
source§fn layout_raw(_: <T as Pointee>::Metadata) -> Result<Layout, LayoutError>
fn layout_raw(_: <T as Pointee>::Metadata) -> Result<Layout, LayoutError>
Gets the layout of the type.
source§impl<T> Pointable for T
impl<T> Pointable for T
source§impl<SS, SP> SupersetOf<SS> for SPwhere
SS: SubsetOf<SP>,
impl<SS, SP> SupersetOf<SS> for SPwhere
SS: SubsetOf<SP>,
source§fn to_subset(&self) -> Option<SS>
fn to_subset(&self) -> Option<SS>
The inverse inclusion map: attempts to construct
self
from the equivalent element of its
superset. Read moresource§fn is_in_subset(&self) -> bool
fn is_in_subset(&self) -> bool
Checks if
self
is actually part of its subset T
(and can be converted to it).source§fn to_subset_unchecked(&self) -> SS
fn to_subset_unchecked(&self) -> SS
Use with care! Same as
self.to_subset
but without any property checks. Always succeeds.source§fn from_subset(element: &SS) -> SP
fn from_subset(element: &SS) -> SP
The inclusion map: converts
self
to the equivalent element of its superset.source§impl<Fut> TryFutureExt for Fut
impl<Fut> TryFutureExt for Fut
source§fn flatten_sink<Item>(self) -> FlattenSink<Self, Self::Ok>
fn flatten_sink<Item>(self) -> FlattenSink<Self, Self::Ok>
source§fn map_ok<T, F>(self, f: F) -> MapOk<Self, F> ⓘ
fn map_ok<T, F>(self, f: F) -> MapOk<Self, F> ⓘ
Maps this future’s success value to a different value. Read more
source§fn map_ok_or_else<T, E, F>(self, e: E, f: F) -> MapOkOrElse<Self, F, E> ⓘ
fn map_ok_or_else<T, E, F>(self, e: E, f: F) -> MapOkOrElse<Self, F, E> ⓘ
Maps this future’s success value to a different value, and permits for error handling resulting in the same type. Read more
source§fn map_err<E, F>(self, f: F) -> MapErr<Self, F> ⓘ
fn map_err<E, F>(self, f: F) -> MapErr<Self, F> ⓘ
Maps this future’s error value to a different value. Read more
source§fn and_then<Fut, F>(self, f: F) -> AndThen<Self, Fut, F> ⓘ
fn and_then<Fut, F>(self, f: F) -> AndThen<Self, Fut, F> ⓘ
Executes another future after this one resolves successfully. The
success value is passed to a closure to create this subsequent future. Read more
source§fn or_else<Fut, F>(self, f: F) -> OrElse<Self, Fut, F> ⓘ
fn or_else<Fut, F>(self, f: F) -> OrElse<Self, Fut, F> ⓘ
Executes another future if this one resolves to an error. The
error value is passed to a closure to create this subsequent future. Read more
source§fn inspect_ok<F>(self, f: F) -> InspectOk<Self, F> ⓘ
fn inspect_ok<F>(self, f: F) -> InspectOk<Self, F> ⓘ
Do something with the success value of a future before passing it on. Read more
source§fn inspect_err<F>(self, f: F) -> InspectErr<Self, F> ⓘ
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Do something with the error value of a future before passing it on. Read more
source§fn try_flatten(self) -> TryFlatten<Self, Self::Ok> ⓘ
fn try_flatten(self) -> TryFlatten<Self, Self::Ok> ⓘ
Flatten the execution of this future when the successful result of this
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source§fn try_flatten_stream(self) -> TryFlattenStream<Self>
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Flatten the execution of this future when the successful result of this
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source§fn unwrap_or_else<F>(self, f: F) -> UnwrapOrElse<Self, F> ⓘ
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source§fn into_future(self) -> IntoFuture<Self> ⓘwhere
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Self: Sized,
source§impl<T> Upcastable for T
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source§fn upcast_any_ref(&self) -> &(dyn Any + 'static)
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upcast ref
source§fn upcast_any_mut(&mut self) -> &mut (dyn Any + 'static)
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upcast mut ref