Trait ShutdownObserverFn 

pub trait ShutdownObserverFn:
    FnOnce(DispatcherRef<'_>)
    + Send
    + 'static { }

A marker trait for a function type that can be used as a shutdown observer for Dispatcher.

Implementors

impl<T> ShutdownObserverFn for T

where T: FnOnce(DispatcherRef<'_>) + Send + 'static,