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TaskGuard

Struct TaskGuard 

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pub struct TaskGuard { /* private fields */ }
Expand description

RAII owner for a spawned tokio task.

Dropping the guard aborts the task. Await or release the handle with Self::disarm when the task must outlive the current scope.

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impl TaskGuard

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pub fn new(handle: JoinHandle<()>) -> Self

Own a spawned task with a default label.

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pub fn with_label(handle: JoinHandle<()>, label: &'static str) -> Self

Own a spawned task with a static label used for debugging.

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pub fn disarm(&mut self) -> Option<JoinHandle<()>>

Release the handle without aborting, for documented-detached handoff.

Returns None only if the guard was already disarmed.

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pub fn is_finished(&self) -> bool

Whether the owned task has finished.

Returns false once the guard is disarmed (no handle held), since the task is no longer owned by this guard.

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pub fn label(&self) -> &'static str

Static label identifying the owned task.

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impl Debug for TaskGuard

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

Formats the value using the given formatter. Read more
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impl Drop for TaskGuard

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fn drop(&mut self)

Executes the destructor for this type. Read more
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fn pin_drop(self: Pin<&mut Self>)

🔬This is a nightly-only experimental API. (pin_ergonomics)
Execute the destructor for this type, but different to Drop::drop, it requires self to be pinned. Read more

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where T: ?Sized,

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impl<T> BorrowMut<T> for T
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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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fn instrument(self, span: Span) -> Instrumented<Self>

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const ALIGN: usize

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type Init = T

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unsafe fn init(init: <T as Pointable>::Init) -> usize

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unsafe fn deref<'a>(ptr: usize) -> &'a T

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

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fn and<P, B, E>(self, other: P) -> And<T, P>
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type Output = T

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

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