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Counter

Struct Counter 

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

A thread-safe diagnostic handle representing a self-declared kernel counter.

This structure contains a pointer to the counter’s static Descriptor layout in memory, and delegates increment, minimum, and maximum operations to highly optimized C++ FFI handlers with zero runtime overhead under ThinLTO.

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impl Counter

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pub const unsafe fn new_with_ptr(descriptor: *const Descriptor) -> Self

Create a new Counter handle using the direct descriptor pointer address.

§Safety

This should only be called with a pointer to a valid, linker-defined static descriptor variable.

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pub fn add(&self, delta: i64)

Add the given delta value to the calling CPU’s counter slot.

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pub fn min(&self, value: i64)

Update the calling CPU’s counter slot to the minimum of its current value and the given value.

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pub fn max(&self, value: i64)

Update the calling CPU’s counter slot to the maximum of its current value and the given value.

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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
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fn borrow(&self) -> &T

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impl<T> BorrowMut<T> for T
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fn borrow_mut(&mut self) -> &mut 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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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
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type Error = Infallible

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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.