Enum PerfClock 

#[non_exhaustive]
pub enum PerfClock {
    Real(fn() -> u64),
    Fake(FakeClock),
}

A clock in whole microseconds, from a backend (shuyi_platform::Platform::clock) or a test.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Real(fn() -> u64)

The device’s clock: microseconds from any fixed start, never going back.

Fake(FakeClock)

A clock that moves by fixed steps on each read, so a test’s records are the same on every run (FakeClock).

Implementations

impl PerfClock

pub fn fake() -> Self

A FakeClock at 0.

pub fn read(&mut self) -> u64

The time now, in microseconds.

Trait Implementations

impl Clone for PerfClock

fn clone(&self) -> PerfClock

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for PerfClock

impl Debug for PerfClock

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

Formats the value using the given formatter.