EventBus Class Reference

Central event dispatcher connecting isolated engine systems. More...

#include <EventBus.hpp>

Public Member Functions
	EventBus ()
	Initializes the EventBus and resets the handler ID counter.
template<typename T >
void	Publish (T &&event)
	Adds an event to the corresponding type queue for future dispatch.
template<typename T >
HandlerId	Subscribe (std::function< void(const T &)> callback)
	Registers a new subscriber callback for a specific event type.
void	Unsubscribe (HandlerId id)
	Removes a handler from the event bus across all queues.
void	DispatchEvents ()
	Initiates sequential dispatch of all accumulated events across all queues.

Private Attributes
std::unordered_map< std::type_index, std::unique_ptr< IEventQueue > >	queues
	Map of event types to their queues.
HandlerId	nextId
	Counter for generating unique handler IDs.

Detailed Description

Central event dispatcher connecting isolated engine systems.

Constructor & Destructor Documentation

EventBus()

EventBus::EventBus ( )

inline

Initializes the EventBus and resets the handler ID counter.

Parameters

None

Return values

None

Member Function Documentation

DispatchEvents()

void EventBus::DispatchEvents ( )

inline

Initiates sequential dispatch of all accumulated events across all queues.

Parameters

None

Return values

None

Publish()

template<typename T >

void EventBus::Publish ( T &&  event )

inline

Adds an event to the corresponding type queue for future dispatch.

Parameters

event

: Universal reference to the event being sent

Return values

None

Subscribe()

template<typename T >

HandlerId EventBus::Subscribe ( std::function< void(const T &)>  callback )

inline

Registers a new subscriber callback for a specific event type.

Parameters

callback

: Function handling the constant reference to the event

Return values

The	unique HandlerId required for unsubscription

Unsubscribe()

void EventBus::Unsubscribe ( HandlerId  id )

inline

Removes a handler from the event bus across all queues.

Note

Iterates through all abstract queues. Safe and efficient enough since unsubscriptions are rare

Parameters

id	: The unique identifier of the handler returned by Subscribe

Return values

None

Member Data Documentation

nextId

HandlerId EventBus::nextId

private

Counter for generating unique handler IDs.

queues

std::unordered_map<std::type_index, std::unique_ptr<IEventQueue> > EventBus::queues

private

Map of event types to their queues.

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The documentation for this class was generated from the following file:

• /home/runner/work/Cheese-Engine/Cheese-Engine/inc/EventBus.hpp