Trait Clock 

pub trait Clock: Send + Sync {
    // Required methods
    fn now(&self) -> Duration;
    fn sleep(
        &self,
        duration: Duration,
    ) -> Pin<Box<dyn Future<Output = ()> + Send + 'static>>;

    // Provided method
    fn sleep_because(
        &self,
        duration: Duration,
        cause: WaitCause,
    ) -> Pin<Box<dyn Future<Output = ()> + Send + 'static>> { ... }
}

A source of monotonic time and of waits measured against it.

Required Methods

fn now(&self) -> Duration

Monotonic time elapsed since this clock’s origin.

fn sleep( &self, duration: Duration, ) -> Pin<Box<dyn Future<Output = ()> + Send + 'static>>

Complete once duration has passed on this clock.

Provided Methods

fn sleep_because( &self, duration: Duration, cause: WaitCause, ) -> Pin<Box<dyn Future<Output = ()> + Send + 'static>>

sleep, for a wait whose reason is cause — the fixed word a plugin names its waits by, such as the limit it is pacing under.

A clock that keeps a record of what waited and why — a test’s simulated one — keeps the cause beside the wait; every other clock waits exactly as sleep does, which is what this is defaulted to.

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors