[−][src]Struct async_std::task::JoinHandle

pub struct JoinHandle<T>(_);
[−]

A handle that awaits the result of a task.

Dropping a JoinHandle will detach the task, meaning that there is no longer a handle to the task and no way to join on it.

Created when a task is spawned.

Methods

impl<T> JoinHandle<T>[src][−]

pub fn task(&self) -> &Task[src][−]

Returns a handle to the underlying task.

Examples

use async_std::task;

let handle = task::spawn(async {
    1 + 2
});
println!("id = {}", handle.task().id());

Trait Implementations

impl<T: Debug> Debug for JoinHandle<T>[src][+]

impl<T> Future for JoinHandle<T>[src][+]

type Output = T

The type of value produced on completion.

impl<T> Send for JoinHandle<T>[src]

impl<T> Sync for JoinHandle<T>[src]

Auto Trait Implementations

impl<T> RefUnwindSafe for JoinHandle<T> where
    T: RefUnwindSafe, 

impl<T> Unpin for JoinHandle<T>

impl<T> !UnwindSafe for JoinHandle<T>

Blanket Implementations

impl<T> Any for T where
    T: 'static + ?Sized, [src][+]

impl<T> Borrow<T> for T where
    T: ?Sized, [src][+]

impl<T> BorrowMut<T> for T where
    T: ?Sized, [src][+]

impl<T> From<T> for T[src][+]

impl<T> FutureExt for T where
    T: Future + ?Sized, [src][+]

impl<T, U> Into<U> for T where
    U: From<T>, [src][+]

impl<T, U> TryFrom<U> for T where
    U: Into<T>, [src][+]

type Error = Infallible

The type returned in the event of a conversion error.

impl<F, T, E> TryFuture for F where
    F: Future<Output = Result<T, E>> + ?Sized, [src][+]

type Ok = T

The type of successful values yielded by this future

type Error = E

The type of failures yielded by this future

impl<Fut> TryFutureExt for Fut where
    Fut: TryFuture + ?Sized, [src][+]

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, [src][+]

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.