corium::EventRouter< EventVariant, MaxSubscribersPerTopic, MaxTopics > Class Template Reference

Zero-heap static topic-based publish/subscribe router. Fans out events to multiple registered delegate subscribers per topic ID without dynamic memory allocation. More...

#include <EventRouter.hpp>

Collaboration diagram for corium::EventRouter< EventVariant, MaxSubscribersPerTopic, MaxTopics >:

Public Types
using	DelegateType = internal::EventHandlerDelegate< EventVariant, 32 >

Public Member Functions
void	clear () noexcept
	Reset all topic subscriptions.
constexpr	EventRouter () noexcept=default
size_t	publish (uint32_t topicId, const EventVariant &event) const noexcept
	Publish an event variant to all subscribers of a specific topic.
template<typename Event >
size_t	publishEvent (uint32_t topicId, const Event &event) const noexcept
	Publish a concrete event to all subscribers of a specific topic.
bool	subscribe (uint32_t topicId, DelegateType subscriber) noexcept
	Subscribe a delegate callback to a specific topic ID.
template<typename Event , typename Callable >
bool	subscribeEvent (uint32_t topicId, Callable callable) noexcept
	Subscribe a typed event handler lambda to a specific topic ID.
size_t	topicCount () const noexcept
	Total active topics currently configured.

Detailed Description

template<typename EventVariant, size_t MaxSubscribersPerTopic = 8, size_t MaxTopics = 8>
class corium::EventRouter< EventVariant, MaxSubscribersPerTopic, MaxTopics >

Zero-heap static topic-based publish/subscribe router. Fans out events to multiple registered delegate subscribers per topic ID without dynamic memory allocation.

Template Parameters

EventVariant	Variant containing all supported event types.
MaxSubscribersPerTopic	Maximum subscribers registered per topic (default: 8).
MaxTopics	Maximum distinct topics supported (default: 8).

Member Typedef Documentation

DelegateType

template<typename EventVariant , size_t MaxSubscribersPerTopic = 8, size_t MaxTopics = 8>

using corium::EventRouter< EventVariant, MaxSubscribersPerTopic, MaxTopics >::DelegateType = internal::EventHandlerDelegate<EventVariant, 32>

Constructor & Destructor Documentation

EventRouter()

template<typename EventVariant , size_t MaxSubscribersPerTopic = 8, size_t MaxTopics = 8>

constexpr corium::EventRouter< EventVariant, MaxSubscribersPerTopic, MaxTopics >::EventRouter ( )

constexprdefaultnoexcept

Member Function Documentation

clear()

template<typename EventVariant , size_t MaxSubscribersPerTopic = 8, size_t MaxTopics = 8>

void corium::EventRouter< EventVariant, MaxSubscribersPerTopic, MaxTopics >::clear ( )

inlinenoexcept

Reset all topic subscriptions.

publish()

template<typename EventVariant , size_t MaxSubscribersPerTopic = 8, size_t MaxTopics = 8>

size_t corium::EventRouter< EventVariant, MaxSubscribersPerTopic, MaxTopics >::publish ( uint32_t  topicId, const EventVariant &  event  ) const

inlinenoexcept

Publish an event variant to all subscribers of a specific topic.

Parameters

topicId	Target topic ID.
event	Event instance to dispatch.

Returns

Number of subscribers invoked.

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publishEvent()

template<typename EventVariant , size_t MaxSubscribersPerTopic = 8, size_t MaxTopics = 8>

template<typename Event >

size_t corium::EventRouter< EventVariant, MaxSubscribersPerTopic, MaxTopics >::publishEvent ( uint32_t  topicId, const Event &  event  ) const

inlinenoexcept

Publish a concrete event to all subscribers of a specific topic.

Template Parameters

Event

Concrete event type.

Parameters

topicId	Target topic ID.
event	Event instance to dispatch.

Returns

Number of subscribers invoked.

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subscribe()

template<typename EventVariant , size_t MaxSubscribersPerTopic = 8, size_t MaxTopics = 8>

bool corium::EventRouter< EventVariant, MaxSubscribersPerTopic, MaxTopics >::subscribe ( uint32_t  topicId, DelegateType  subscriber  )

inlinenoexcept

Subscribe a delegate callback to a specific topic ID.

Parameters

topicId	Topic identifier.
subscriber	Delegate callback to execute when an event is published to this topic.

Returns

true if subscriber was registered; false if topic or subscriber slots are full.

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subscribeEvent()

template<typename EventVariant , size_t MaxSubscribersPerTopic = 8, size_t MaxTopics = 8>

template<typename Event , typename Callable >

bool corium::EventRouter< EventVariant, MaxSubscribersPerTopic, MaxTopics >::subscribeEvent ( uint32_t  topicId, Callable  callable  )

inlinenoexcept

Subscribe a typed event handler lambda to a specific topic ID.

Template Parameters

Event	Concrete event type to filter on.
Callable	Lambda/Functor accepting const Event&.

Parameters

topicId	Topic identifier.
callable	Handler function.

Returns

true if subscribed successfully.

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topicCount()

template<typename EventVariant , size_t MaxSubscribersPerTopic = 8, size_t MaxTopics = 8>

size_t corium::EventRouter< EventVariant, MaxSubscribersPerTopic, MaxTopics >::topicCount ( ) const

inlinenoexcept

Total active topics currently configured.

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

• include/corium/EventRouter.hpp