[−][src]Struct glommio::task::JoinHandle
A handle that awaits the result of a task.
This type is a future that resolves to an Option<R>
where:
None
indicates the task has panicked or was canceled.Some(result)
indicates the task has completed withresult
of typeR
.
Implementations
impl<R, T> JoinHandle<R, T>
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pub fn cancel(&self)
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Cancels the task.
If the task has already completed, calling this method will have no effect.
When a task is canceled, its future will not be polled again.
pub fn tag(&self) -> &T
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Returns a reference to the tag stored inside the task.
pub fn waker(&self) -> Waker
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Returns a waker associated with the task.
Trait Implementations
impl<R, T> Debug for JoinHandle<R, T>
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impl<R, T> Drop for JoinHandle<R, T>
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impl<R, T> Future for JoinHandle<R, T>
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type Output = Option<R>
The type of value produced on completion.
fn poll(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output>
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impl<R: Send, T> Send for JoinHandle<R, T>
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impl<R, T> Sync for JoinHandle<R, T>
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impl<R, T> Unpin for JoinHandle<R, T>
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Auto Trait Implementations
impl<R, T> RefUnwindSafe for JoinHandle<R, T> where
R: RefUnwindSafe,
T: RefUnwindSafe,
R: RefUnwindSafe,
T: RefUnwindSafe,
impl<R, T> UnwindSafe for JoinHandle<R, T> where
R: UnwindSafe,
T: UnwindSafe,
R: UnwindSafe,
T: UnwindSafe,
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<F> FutureExt for F where
F: Future + ?Sized,
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F: Future + ?Sized,
fn poll(&mut self, cx: &mut Context<'_>) -> Poll<Self::Output> where
Self: Unpin,
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Self: Unpin,
fn or<F>(self, other: F) -> Or<Self, F> where
F: Future<Output = Self::Output>,
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F: Future<Output = Self::Output>,
fn race<F>(self, other: F) -> Race<Self, F> where
F: Future<Output = Self::Output>,
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F: Future<Output = Self::Output>,
fn catch_unwind(self) -> CatchUnwind<Self> where
Self: UnwindSafe,
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Self: UnwindSafe,
fn boxed<'a>(self) -> Pin<Box<dyn Future<Output = Self::Output> + 'a + Send>> where
Self: Send + 'a,
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Self: Send + 'a,
fn boxed_local<'a>(self) -> Pin<Box<dyn Future<Output = Self::Output> + 'a>> where
Self: 'a,
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Self: 'a,
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> Same<T> for T
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type Output = T
Should always be Self
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>,