Struct EventBus 

pub struct EventBus { /* private fields */ }

Sync event bus: listeners run in the dispatching task (order of registration).

Implementations

impl EventBus

pub fn new() -> Self

pub fn listen<E, F>(&self, f: F)

where E: Event, F: Fn(&E) + Send + Sync + 'static,

Register a typed listener. Multiple listeners per event type are allowed.

pub fn dispatch<E: Event>(&self, event: E)

Dispatch event to all listeners for E (registration order).

pub fn listener_count<E: Event>(&self) -> usize

Number of listeners registered for E (tests / diagnostics).

Trait Implementations

impl Clone for EventBus

fn clone(&self) -> EventBus

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Default for EventBus

fn default() -> EventBus

Returns the “default value” for a type.