Trait Clock 

pub trait Clock {
    // Required method
    fn now(&self) -> Timestamp;
}

Pluggable time source for the audit chain.

Implementations are expected to be monotonic with respect to successive calls. The chain enforces monotonicity at append time and returns crate::Error::NonMonotonicClock if a regression is observed.

Example

use audit_trail::{Clock, Timestamp};

/// A fixed clock useful for testing.
struct FixedClock(Timestamp);

impl Clock for FixedClock {
    fn now(&self) -> Timestamp { self.0 }
}

let clock = FixedClock(Timestamp::from_nanos(42));
assert_eq!(clock.now().as_nanos(), 42);

Required Methods

fn now(&self) -> Timestamp

Return the current timestamp.

Implementors

impl Clock for SystemClock

Available on crate feature std only.