Struct MonotonicClock 

pub struct MonotonicClock { /* private fields */ }

A monotonic clock measuring milliseconds since it was created.

Backed by std::time::Instant, so it never goes backwards and is immune to wall-clock adjustments. Requires the std feature.

Implementations

impl MonotonicClock

pub fn new() -> Self

Creates a clock whose zero point is now.

Examples found in repository

examples/basic.rs (line 17)

fn main() {
    // Deterministic clock for tests / demos.
    let clock = ManualClock::new(0);
    println!("manual t = {}", clock.now());
    clock.advance(1_000);
    println!("after advance(1000): t = {}", clock.now());

    // Real monotonic clock (milliseconds since creation).
    let real = MonotonicClock::new();
    let a = real.now();
    let b = real.now();
    println!("monotonic: {a} -> {b} (non-decreasing: {})", b >= a);

    // Any &Clock works wherever a Clock is expected.
    println!("via trait object: {}", read(&clock));
}

Trait Implementations

impl Clock for MonotonicClock

Available on crate feature std only.

fn now(&self) -> u64

Returns the current time as a u64 tick.

impl Clone for MonotonicClock

fn clone(&self) -> MonotonicClock

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MonotonicClock

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

Formats the value using the given formatter.

impl Default for MonotonicClock

Available on crate feature std only.

fn default() -> Self

Returns the “default value” for a type.