ExecutionContext

Struct ExecutionContext 

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pub struct ExecutionContext<'a> { /* private fields */ }
Expand description

Context of a task execution body.

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impl<'a> ExecutionContext<'a>

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pub fn self_task(&self) -> RunningTask

Get the running task handle of the current task.

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pub fn choir(&self) -> &'a Arc<Choir>

Return the main choir.

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pub fn fork<N: Into<Name>>(&self, name: N) -> ProtoTask<'_>

Fork the current task.

The new task will block all the same dependents as the currently executing task.

This is useful because it allows creating tasks on the fly from within other tasks. Generally, making a task in flight depend on anything is impossible. But one can fork a dependency instead.

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pub fn add_fork<D: AsRef<Notifier>>(&self, other: &D)

Register an existing task as a fork.

It will block all the dependents of the currently executing task.

Will panic if the other task is already a fork of something.

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impl Drop for ExecutionContext<'_>

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fn drop(&mut self)

Executes the destructor for this type. Read more

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impl<'a> Freeze for ExecutionContext<'a>

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impl<'a> !RefUnwindSafe for ExecutionContext<'a>

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impl<'a> Send for ExecutionContext<'a>

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impl<'a> Sync for ExecutionContext<'a>

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impl<'a> Unpin for ExecutionContext<'a>

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impl<'a> !UnwindSafe for ExecutionContext<'a>

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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> Pointable for T

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const ALIGN: usize

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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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.