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Replace Duration::new() w/ Duration::from_nanos (#9387)

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Niklas Adolfsson 2018-08-21 17:01:09 +02:00 committed by Andrew Jones
parent 7bf1889af1
commit e12a26dac5
1 changed files with 5 additions and 7 deletions
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12
ethcore/light/src/net/load_timer.rs
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@ -120,17 +120,15 @@ impl LoadDistribution {
pub fn expected_time(&self, kind: Kind) -> Duration {
let samples = self.samples.read();
samples.get(&kind).and_then(|s| {
if s.len() == 0 { return None }
if s.is_empty() { return None }
let alpha: f64 = 1f64 / s.len() as f64;
let start = s.front().expect("length known to be non-zero; qed").clone();
let ema = s.iter().skip(1).fold(start as f64, |a, &c| {
let alpha: f64 = 1_f64 / s.len() as f64;
let start = *s.front().expect("length known to be non-zero; qed") as f64;
let ema = s.iter().skip(1).fold(start, |a, &c| {
(alpha * c as f64) + ((1.0 - alpha) * a)
});
// TODO: use `Duration::from_nanos` once stable (https://github.com/rust-lang/rust/issues/46507)
let ema = ema as u64;
Some(Duration::new(ema / 1_000_000_000, (ema % 1_000_000_000) as u32))
Some(Duration::from_nanos(ema as u64))
}).unwrap_or_else(move || hardcoded_serve_time(kind))
}