Trait TimerConfig

Source

pub trait TimerConfig: Send + 'static {
    type Storage: DerefMut<Target = dyn Handler<Instant>> + Send + 'static;

    // Required method
    fn wrap(handler: impl Handler<Instant> + 'static) -> Self::Storage;
}

Expand description

Configuration trait for generic timer code.

ZST annotation type that bundles the handler storage type with a wrapping function. Library code parameterized over C: TimerConfig can schedule, cancel, and wrap handlers without knowing the concrete storage strategy.

§Example

use std::time::Instant;
use nexus_rt::timer::{BoxedTimers, TimerConfig};
use nexus_rt::{Handler, World};
use nexus_timer::Wheel;

fn schedule_heartbeat<C: TimerConfig>(
    world: &mut World,
    handler: impl Handler<Instant> + 'static,
    deadline: Instant,
) {
    world.resource_mut::<Wheel<C::Storage>>()
        .schedule_forget(deadline, C::wrap(handler));
}