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use std::time::Duration;
mod wheel;
#[doc(inline)]
pub mod delay_queue;
pub use delay_queue::DelayQueue;
enum Round {
Up,
Down,
}
#[inline]
fn ms(duration: Duration, round: Round) -> u64 {
const NANOS_PER_MILLI: u32 = 1_000_000;
const MILLIS_PER_SEC: u64 = 1_000;
let millis = match round {
Round::Up => (duration.subsec_nanos() + NANOS_PER_MILLI - 1) / NANOS_PER_MILLI,
Round::Down => duration.subsec_millis(),
};
duration
.as_secs()
.saturating_mul(MILLIS_PER_SEC)
.saturating_add(u64::from(millis))
}