util::impl::ObservableValueBase< T > Class Template Reference

Base class containing common ObservableValue functionality. More...

#include <ObservableValue.hpp>

Inheritance diagram for util::impl::ObservableValueBase< T >:

Public Member Functions
boost::signals2::connection	observe (std::invocable< T const & > auto &&fn)
	Registers an observer callback for value changes.
bool	hasObservers () const
	Checks if there are any active observers.
virtual void	forceNotify ()=0
	Forces notification of all observers with the current value.

Protected Member Functions
void	notifyObservers (T const &value)
	Notifies all observers with the given value.

Protected Attributes
boost::signals2::signal< void(T const &)>	onUpdate_

Detailed Description

template<Observable T>
class util::impl::ObservableValueBase< T >

Base class containing common ObservableValue functionality.

This class contains all the observer management and notification logic that is shared between regular and atomic ObservableValue specializations.

Template Parameters

T	The value type (for atomic specializations, this is the underlying type, not std::atomic<T>)

Member Function Documentation

forceNotify()

template<Observable T>

virtual void util::impl::ObservableValueBase< T >::forceNotify ( )

pure virtual

Forces notification of all observers with the current value.

This method will notify all observers with the current value regardless of whether the value has changed since the last notification.

Implemented in util::ObservableValue< std::atomic< T > >, and util::ObservableValue< T >.

hasObservers()

template<Observable T>

bool util::impl::ObservableValueBase< T >::hasObservers ( ) const

inlinenodiscard

Checks if there are any active observers.

Returns

true if there are observers, false otherwise

notifyObservers()

template<Observable T>

void util::impl::ObservableValueBase< T >::notifyObservers ( T const & value )

inlineprotected

Notifies all observers with the given value.

Parameters

value

The value to send to observers

observe()

template<Observable T>

boost::signals2::connection util::impl::ObservableValueBase< T >::observe ( std::invocable< T const & > auto && fn )

inline

Registers an observer callback for value changes.

Parameters

fn	Callback function/lambda that accepts T const&

Returns

Connection object for managing the subscription

---

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

• /__w/clio/clio/src/util/ObservableValue.hpp