[−][src]Struct metered::common::HitCount
A metric counting how many times an expression as been hit, before it returns.
This is a light-weight metric.
By default, HitCount
uses a lock-free u64
Counter
, which makes sense in multithread scenarios. Non-threaded applications can gain performance by using a std::cell:Cell<u64>
instead.
Trait Implementations
impl<C: Counter> Clear for HitCount<C>
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impl<C: Counter, R> Metric<R> for HitCount<C>
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impl<C: Default + Counter> Default for HitCount<C>
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impl<C: Clone + Counter> Clone for HitCount<C>
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fn clone(&self) -> HitCount<C>
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fn clone_from(&mut self, source: &Self)
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Performs copy-assignment from source
. Read more
impl<C: Debug + Counter> Debug for HitCount<C>
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impl<C: Counter> Serialize for HitCount<C> where
C: Serialize,
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C: Serialize,
fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error> where
__S: Serializer,
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__S: Serializer,
impl<C: Counter> Enter for HitCount<C>
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type E = ()
The type returned by the enter
function and carried to OnResult
fn enter(&self) -> Self::E
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impl<C: Counter, R> OnResult<R> for HitCount<C>
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Auto Trait Implementations
impl<C> Send for HitCount<C> where
C: Send,
C: Send,
impl<C> Unpin for HitCount<C> where
C: Unpin,
C: Unpin,
impl<C> Sync for HitCount<C> where
C: Sync,
C: Sync,
impl<C> UnwindSafe for HitCount<C> where
C: UnwindSafe,
C: UnwindSafe,
impl<C> RefUnwindSafe for HitCount<C> where
C: RefUnwindSafe,
C: RefUnwindSafe,
Blanket Implementations
impl<T> From<T> for T
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T> ToOwned for T where
T: Clone,
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T: Clone,
type Owned = T
The resulting type after obtaining ownership.
fn to_owned(&self) -> T
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fn clone_into(&self, target: &mut T)
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impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,
type Error = <U as TryFrom<T>>::Error
The type returned in the event of a conversion error.
fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>
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impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
fn borrow_mut(&mut self) -> &mut T
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impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,