Struct EventBus 

pub struct EventBus { /* private fields */ }

A cheap-to-clone handle to the shared broadcast channel used as an internal event bus between services.

Implementations

impl EventBus

pub fn new() -> Self

Create a new event bus with a buffer of 1 024 events.

pub fn publish(&self, event: InternalEvent)

Publish an event to all current subscribers.

Silently drops the event if there are no active subscribers (the broadcast channel returns SendError in that case, which we ignore).

pub fn subscribe(&self) -> Receiver<InternalEvent>

Subscribe to the event stream. Each call returns an independent receiver that starts from the next event published after the call.

pub fn subscriber_count(&self) -> usize

Number of currently subscribed receivers — surfaced by the /_awsim/debug/objects diagnostic to detect leaked SSE subscribers.

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 Debug for EventBus

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for EventBus

fn default() -> Self

Returns the “default value” for a type.