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use chrono::Duration;
pub trait Eventer {
fn execute(&mut self) -> Option<Duration>;
}
pub struct BasicEvent<F, T>
where
F: FnMut(&mut T) -> Option<Duration>,
{
pub task: F,
pub state: T,
}
impl<F, T> Eventer for BasicEvent<F, T>
where
F: FnMut(&mut T) -> Option<Duration>,
{
fn execute(&mut self) -> Option<Duration> {
(self.task)(&mut self.state)
}
}
#[allow(dead_code)]
pub struct OneShot<F>
where
F: Fn()
{
delay: Option<Duration>,
task: F,
}
impl<F> OneShot<F>
where
F: Fn()
{
#[allow(dead_code)]
fn new(delay: Duration, task: F) -> Self {
Self {
delay: Some(delay),
task: task
}
}
}
impl<F> Eventer for OneShot<F>
where
F: Fn()
{
fn execute(&mut self) -> Option<Duration> {
if self.delay.is_some() {
let mut x = None;
::std::mem::swap(&mut x, &mut self.delay);
x
} else {
(self.task)();
None
}
}
}