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TaskRef

strat9_kernel::ostd::task

Struct TaskRef 

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

Reference-counted task handle

Similar to Theseus’s TaskRef, this provides safe reference counting for task structures.

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impl TaskRef

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pub unsafe fn new(task_ptr: *mut TaskInner) -> Self

Creates a new TaskRef from a raw task pointer

§Safety
  • The task_ptr must be valid for the lifetime of the process
  • The caller must ensure proper synchronization
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pub unsafe fn as_ref(&self) -> &TaskInner

Returns a reference to the inner task

§Safety

The caller must ensure the task is still valid

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pub unsafe fn as_mut(&mut self) -> &mut TaskInner

Returns a mutable reference to the inner task

§Safety

The caller must ensure exclusive access to the task

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pub fn clone(&self) -> Self

Clones the TaskRef

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pub fn ref_count(&self) -> usize

Returns the reference count

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pub fn is_last_ref(&self) -> bool

Returns true if this is the last reference

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impl Clone for TaskRef

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fn clone(&self) -> Self

Performs the clone operation.

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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Drop for TaskRef

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fn drop(&mut self)

Performs the drop operation.

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impl Send for TaskRef

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impl Sync for TaskRef

Auto Trait Implementations§

Blanket Implementations§

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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> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. 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> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. 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.