Struct futures_channel::oneshot::Receiver [−][src]
#[must_use = "futures do nothing unless polled"]pub struct Receiver<T> { /* fields omitted */ }
A future for a value that will be provided by another asynchronous task.
This is created by the channel function.
Methods
impl<T> Receiver<T>[src]
impl<T> Receiver<T>pub fn close(&mut self)[src]
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.
pub fn try_recv(&mut self) -> Result<Option<T>, Canceled>[src]
pub fn try_recv(&mut self) -> Result<Option<T>, Canceled>Attempts to receive a message outside of the context of a task.
Useful when a Context is not available
such as within a Drop impl.
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A return value of None must be considered immediately stale (out of
date) unless close has been called first.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
impl<T: Debug> Debug for Receiver<T>[src]
impl<T: Debug> Debug for Receiver<T>fn fmt(&self, f: &mut Formatter) -> Result[src]
fn fmt(&self, f: &mut Formatter) -> ResultFormats the value using the given formatter. Read more
impl<T> Unpin for Receiver<T>[src]
impl<T> Unpin for Receiver<T>impl<T> Future for Receiver<T>[src]
impl<T> Future for Receiver<T>type Output = Result<T, Canceled>
🔬 This is a nightly-only experimental API. (futures_api)
futures in libcore are unstable
The result of the Future.
fn poll(self: PinMut<Self>, cx: &mut Context) -> Poll<Result<T, Canceled>>[src]
fn poll(self: PinMut<Self>, cx: &mut Context) -> Poll<Result<T, Canceled>>🔬 This is a nightly-only experimental API. (futures_api)
futures in libcore are unstable
Attempt to resolve the future to a final value, registering the current task for wakeup if the value is not yet available. Read more
impl<T> Drop for Receiver<T>[src]
impl<T> Drop for Receiver<T>Auto Trait Implementations
Blanket Implementations
impl<T> From for T[src]
impl<T> From for Timpl<T, U> TryFrom for T where
T: From<U>, [src]
impl<T, U> TryFrom for T where
T: From<U>, type Error = !
try_from)The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>[src]
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>try_from)Performs the conversion.
impl<T, U> TryInto for T where
U: TryFrom<T>, [src]
impl<T, U> TryInto for T where
U: TryFrom<T>, type Error = <U as TryFrom<T>>::Error
try_from)The type returned in the event of a conversion error.
fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>[src]
fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>try_from)Performs the conversion.
impl<T, U> Into for T where
U: From<T>, [src]
impl<T, U> Into for T where
U: From<T>, impl<T> Borrow for T where
T: ?Sized, [src]
impl<T> Borrow for T where
T: ?Sized, impl<T> BorrowMut for T where
T: ?Sized, [src]
impl<T> BorrowMut for T where
T: ?Sized, fn borrow_mut(&mut self) -> &mut T[src]
fn borrow_mut(&mut self) -> &mut TMutably borrows from an owned value. Read more
impl<T> Any for T where
T: 'static + ?Sized, [src]
impl<T> Any for T where
T: 'static + ?Sized, fn get_type_id(&self) -> TypeId[src]
fn get_type_id(&self) -> TypeId🔬 This is a nightly-only experimental API. (get_type_id)
this method will likely be replaced by an associated static
Gets the TypeId of self. Read more
impl<F, T, E> TryFuture for F where
F: Future<Output = Result<T, E>>, [src]
impl<F, T, E> TryFuture for F where
F: Future<Output = Result<T, E>>,