[−][src]Struct catty::Receiver
The receiver side of a oneshot channel, created with catty::oneshot
. This
is a future resolving to item, or an error if the sender side has been dropped without sending
a message. After a message is received, subsequent polls will return Err(Disconnected)
.
Example
let (tx, rx) = catty::oneshot(); tx.send("Hello!"); assert_eq!(rx.await, Ok("Hello!"));
Implementations
impl<T> Receiver<T>
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pub fn try_recv(&mut self) -> Result<Option<T>, Disconnected>
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Checks to see if there is a message waiting in the channel. This will return None
if there
a message has not been sent, and Err(Disconnected)
if a message has already been received.
Examples
let (tx, mut rx) = catty::oneshot(); tx.send("Hello!"); assert_eq!(rx.try_recv(), Ok(Some("Hello!")));
Subsequent receives return Err(Disconnected)
:
let (tx, mut rx) = catty::oneshot(); tx.send("Hello!"); assert_eq!(rx.try_recv(), Ok(Some("Hello!"))); assert!(rx.try_recv().is_err()); assert_eq!(rx.await, Err(Disconnected))
Trait Implementations
Auto Trait Implementations
impl<T> !RefUnwindSafe for Receiver<T>
impl<T> Send for Receiver<T> where
T: Send,
T: Send,
impl<T> Sync for Receiver<T> where
T: Send,
T: Send,
impl<T> Unpin for Receiver<T>
impl<T> !UnwindSafe for Receiver<T>
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
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,
pub fn borrow_mut(&mut self) -> &mut T
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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<F> IntoFuture for F where
F: Future,
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F: Future,
type Output = <F as Future>::Output
🔬 This is a nightly-only experimental API. (
into_future
)The output that the future will produce on completion.
type Future = F
🔬 This is a nightly-only experimental API. (
into_future
)Which kind of future are we turning this into?
pub fn into_future(self) -> <F as IntoFuture>::Future
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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.
pub 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>,