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#![crate_name = "hjul"]
#![feature(test)]
extern crate test;
mod timers;
pub use timers::{Runner, Timer};
#[cfg(test)]
mod tests {
use super::*;
use std::sync::atomic::{AtomicBool, Ordering};
use std::sync::Arc;
use std::thread;
use std::time::{Duration, Instant};
use test::Bencher;
#[test]
fn test_accuracy() {
let capacity = 100_000;
let accuracy = Duration::from_millis(100);
let horrison = Duration::from_millis(10_000);
let cogs = (horrison.as_nanos() / accuracy.as_nanos()) as usize;
let runner = Runner::new(accuracy, cogs, capacity);
let tests = vec![
Duration::from_millis(100),
Duration::from_millis(200),
Duration::from_millis(250),
Duration::from_millis(200),
Duration::from_millis(400),
Duration::from_millis(600),
Duration::from_millis(700),
Duration::from_millis(100),
Duration::from_millis(500),
Duration::from_millis(500),
];
let mut checks: Vec<Arc<AtomicBool>> = vec![];
let mut timers: Vec<Timer> = vec![];
for _ in 0..(capacity / tests.len()) {
for &dur in &tests {
let fired = Arc::new(AtomicBool::new(false));
let fcopy = fired.clone();
let start = Instant::now();
let timer = runner.timer(move || {
let delta = Instant::now() - start;
assert!(
delta >= dur - accuracy,
"at least (duration - accuracy) time should pass"
);
assert!(
delta + accuracy >= dur,
"no more than (duration + accuracy) time should pass"
);
fcopy.store(true, Ordering::SeqCst);
});
timer.reset(dur);
timers.push(timer);
checks.push(fired);
}
}
let mut longest = tests[0];
for &dur in &tests {
if dur > longest {
longest = dur;
}
assert!(dur < horrison);
}
thread::sleep(2 * longest);
for f in checks {
assert!(f.load(Ordering::Acquire));
}
}
#[bench]
fn bench_reset(b: &mut Bencher) {
let runner = Runner::new(Duration::from_millis(100), 100, 10);
let timer = runner.timer(Box::new(|| {}));
b.iter(|| timer.reset(Duration::from_millis(1000)));
}
#[bench]
fn bench_start(b: &mut Bencher) {
let runner = Runner::new(Duration::from_millis(100), 100, 10);
let timer = runner.timer(Box::new(|| {}));
b.iter(|| timer.start(Duration::from_millis(1000)));
}
}