fast_clock/
std_clocks.rs

1use crate::{CalibratedClock, Clock};
2use std::time::{Duration, Instant, SystemTime};
3
4macro_rules! std_clock {
5    ($Instant:ty,$Clock:ident,$unwrap_between:path) => {
6        #[derive(Clone, Copy, Debug)]
7        pub struct $Clock;
8
9        impl Clock for $Clock {
10            type Instant = $Instant;
11
12            fn now(self) -> Self::Instant {
13                Self::Instant::now()
14            }
15        }
16
17        impl CalibratedClock for $Clock {
18            fn between_u64_ns(self, later: Self::Instant, earlier: Self::Instant) -> u64 {
19                $unwrap_between(later.duration_since(earlier))
20                    .as_nanos()
21                    .try_into()
22                    .unwrap()
23            }
24
25            fn add_u64_ns(self, base: Self::Instant, offset: u64) -> Self::Instant {
26                base + Duration::from_nanos(offset)
27            }
28
29            fn sub_u64_ns(self, base: Self::Instant, offset: u64) -> Self::Instant {
30                base - Duration::from_nanos(offset)
31            }
32        }
33    };
34}
35
36std_clock!(Instant, InstantClock, std::convert::identity);
37std_clock!(SystemTime, SystemClock, Result::unwrap);
fast_clock/std_clocks.rs

fast_clock/
std_clocks.rs
