Struct TrackerExecutor

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pub struct TrackerExecutor<E> { /* private fields */ }
Expand description

Track running tasks.

Note that there is no guarantee that the runtime would drop the future after it is done; therefore, this should only be used for purely approx statistics and not actual numbers. Additionally, it does not track any tasks spawned directly by the runtime but only by Executor::spawn through this struct.

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impl<E: Executor> TrackerExecutor<E>

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pub fn new(executor: E) -> Self

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pub fn count(&self) -> usize

Number of active tasks.

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impl<E> Debug for TrackerExecutor<E>

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl<E: Executor> Executor for TrackerExecutor<E>

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fn spawn<F>(&self, future: F) -> JoinHandle<F::Output>
where F: Future + Send + 'static, F::Output: Send + 'static,

Spawns a new asynchronous task in the background, returning a Future JoinHandle for it.
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fn spawn_abortable<F>(&self, future: F) -> AbortableJoinHandle<F::Output>
where F: Future + Send + 'static, F::Output: Send + 'static,

Spawns a new asynchronous task in the background, returning an abortable handle that will cancel the task once the handle is dropped. Read more
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fn dispatch<F>(&self, future: F)
where F: Future + Send + 'static, F::Output: Send + 'static,

Spawns a new asynchronous task in the background without an handle. Basically the same as Executor::spawn.
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fn spawn_coroutine<T, F, Fut>(&self, f: F) -> CommunicationTask<T>
where F: FnMut(Receiver<T>) -> Fut, Fut: Future<Output = ()> + Send + 'static,

Spawns a new asynchronous task that accepts messages to the task using channels. This function returns a handle that allows sending a message, or if there is no reference to the handle at all (in other words, all handles are dropped), the task would be aborted.
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fn spawn_coroutine_with_context<T, F, C, Fut>( &self, context: C, f: F, ) -> CommunicationTask<T>
where F: FnMut(C, Receiver<T>) -> Fut, Fut: Future<Output = ()> + Send + 'static,

Spawns a new asynchronous task with provided context that accepts messages to the task using channels. This function returns a handle that allows sending a message, or if there is no reference to the handle at all (in other words, all handles are dropped), the task would be aborted.
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fn spawn_unbounded_coroutine<T, F, Fut>( &self, f: F, ) -> UnboundedCommunicationTask<T>
where F: FnMut(UnboundedReceiver<T>) -> Fut, Fut: Future<Output = ()> + Send + 'static,

Spawns a new asynchronous task that accepts messages to the task using channels. This function returns a handle that allows sending a message, or if there is no reference to the handle at all (in other words, all handles are dropped), the task would be aborted.
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fn spawn_unbounded_coroutine_with_context<T, F, C, Fut>( &self, context: C, f: F, ) -> UnboundedCommunicationTask<T>
where F: FnMut(C, UnboundedReceiver<T>) -> Fut, Fut: Future<Output = ()> + Send + 'static,

Spawns a new asynchronous task with provided context that accepts messages to the task using channels. This function returns a handle that allows sending a message, or if there is no reference to the handle at all (in other words, all handles are dropped), the task would be aborted.

Auto Trait Implementations§

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impl<E> Freeze for TrackerExecutor<E>
where E: Freeze,

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impl<E> RefUnwindSafe for TrackerExecutor<E>
where E: RefUnwindSafe,

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impl<E> Send for TrackerExecutor<E>
where E: Send,

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impl<E> Sync for TrackerExecutor<E>
where E: Sync,

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impl<E> Unpin for TrackerExecutor<E>
where E: Unpin,

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impl<E> UnwindSafe for TrackerExecutor<E>
where E: UnwindSafe,

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.