Function tokio_timer::with_default

pub fn with_default<F, R>(handle: &Handle, enter: &mut Enter, f: F) -> R where
    F: FnOnce(&mut Enter) -> R, 

Set the default timer for the duration of the closure.

From within the closure, Delay instances that are created via Delay::new can be used.

Panics

This function panics if there already is a default timer set.