Trait Delay 

pub trait Delay {
    // Required method
    fn sleep(&self, d: Duration) -> impl Future<Output = ()> + Send;
}

A non-allocating sleep.

RuntimeOps::sleep is dyn and must box; this one is generic and returns the adapter’s own timer type with nothing on the heap. Only sleeping lives here — RuntimeOps::now_nanos is a plain call and stays the clock.

The returned future borrows nothing, so a task holding a D: Delay still produces 'static futures from it.

Required Methods

fn sleep(&self, d: Duration) -> impl Future<Output = ()> + Send

Complete after at least d has elapsed.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors