[]Struct libra_secure_push_metrics::HistogramTimer

#[must_use =
  "Timer should be kept in a variable otherwise it cannot observe duration"]pub struct HistogramTimer { /* fields omitted */ }

Timer to measure and record the duration of an event.

This timer can be stopped and observed at most once, either automatically (when it goes out of scope) or manually. Alternatively, it can be manually stopped and discarded in order to not record its value.

Implementations

impl HistogramTimer

pub fn observe_duration(self)

Observe and record timer duration (in seconds).

It observes the floating-point number of seconds elapsed since the timer started, and it records that value to the attached histogram.

pub fn stop_and_record(self) -> f64

Observe, record and return timer duration (in seconds).

It observes and returns a floating-point number for seconds elapsed since the timer started, recording that value to the attached histogram.

pub fn stop_and_discard(self) -> f64

Observe and return timer duration (in seconds).

It returns a floating-point number of seconds elapsed since the timer started, without recording to any histogram.

Trait Implementations

impl Debug for HistogramTimer

impl Drop for HistogramTimer

Auto Trait Implementations

impl RefUnwindSafe for HistogramTimer

impl Send for HistogramTimer

impl Sync for HistogramTimer

impl Unpin for HistogramTimer

impl UnwindSafe for HistogramTimer

Blanket Implementations

impl<T> Any for T where
    T: 'static + ?Sized
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impl<T> Borrow<T> for T where
    T: ?Sized
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impl<T> BorrowMut<T> for T where
    T: ?Sized
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impl<T> From<T> for T[src]

impl<T, U> Into<U> for T where
    U: From<T>, 
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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.

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.