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// Copyright 2017 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
use time::Duration;
use sys::{TimeSysCall, TimeClock};
#[derive(Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Debug, Hash)]
pub struct Instant(Duration);
#[derive(Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Debug, Hash)]
pub struct SystemTime(Duration);
pub const UNIX_EPOCH: SystemTime = SystemTime(Duration::from_secs(0));
impl Instant {
pub fn now() -> Instant {
Instant(TimeSysCall::perform(TimeClock::Monotonic))
}
pub fn sub_instant(&self, other: &Instant) -> Duration {
self.0 - other.0
}
pub fn add_duration(&self, other: &Duration) -> Instant {
Instant(self.0 + *other)
}
pub fn sub_duration(&self, other: &Duration) -> Instant {
Instant(self.0 - *other)
}
}
impl SystemTime {
pub fn now() -> SystemTime {
SystemTime(TimeSysCall::perform(TimeClock::System))
}
pub fn sub_time(&self, other: &SystemTime)
-> Result<Duration, Duration> {
self.0.checked_sub(other.0).ok_or_else(|| other.0 - self.0)
}
pub fn add_duration(&self, other: &Duration) -> SystemTime {
SystemTime(self.0 + *other)
}
pub fn sub_duration(&self, other: &Duration) -> SystemTime {
SystemTime(self.0 - *other)
}
}
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