kanzi::Delegate< F > Class Template Reference

Multicast delegate — holds zero or more callbacks with the same signature and invokes them all. More...

#include <kanzi/core/util/delegate.hpp>

Public Types
using	Callback

Public Member Functions
bool	empty () const
	Returns true if no callbacks are subscribed.
template<typename... Args>
void	invoke (Args &&... args) const
	Invokes all subscribed callbacks with the given arguments.
DelegateHandle	subscribe (Callback callback)
	Subscribes a callback. Returns a handle that can be passed to unsubscribe().
void	unsubscribe (DelegateHandle handle)
	Removes the callback registered with the given handle. No-op if the handle is not found.

Detailed Description

template<typename F>
class kanzi::Delegate< F >

Multicast delegate — holds zero or more callbacks with the same signature and invokes them all.

subscribe() returns a DelegateHandle used to unsubscribe a specific callback later.

Since

Kanzi 4.1.0

Attention

This feature is experimental and is likely to change in future releases.

Member Typedef Documentation

Callback

template<typename F >

using kanzi::Delegate< F >::Callback

Member Function Documentation

subscribe()

template<typename F >

DelegateHandle kanzi::Delegate< F >::subscribe ( Callback callback )

inline

Subscribes a callback. Returns a handle that can be passed to unsubscribe().

unsubscribe()

template<typename F >

void kanzi::Delegate< F >::unsubscribe ( DelegateHandle handle )

inline

Removes the callback registered with the given handle. No-op if the handle is not found.

invoke()

template<typename F >

template<typename... Args>

void kanzi::Delegate< F >::invoke ( Args &&... args ) const

inline

Invokes all subscribed callbacks with the given arguments.

empty()

template<typename F >

bool kanzi::Delegate< F >::empty ( ) const

inline

Returns true if no callbacks are subscribed.

---

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

• kanzi/core/util/delegate.hpp