Observable Class Reference

Inheritance diagram for Observable:

Public Member Functions
Observable &	operator= (const Observable &observable)
virtual void	RegisterObserver (Observer *obs)
	Register an observer. More...
virtual void	UnregisterObserver (Observer *obs)
	Unregister an observer. More...
virtual void	NotifyObservers (const ObservableMessage message=ObservableMessageNone)
	Send a message to all observers when m_bObservableChanged is true. More...
virtual void	SetChanged (bool bSetTo=true)
	Mark an observable changed. More...
virtual bool	IsObserving (const Observer &obs) const
	Check whether this observable is being observed by an observer. More...

Protected Member Functions
void	SendMessage (const ObservableMessage message)
	Send a message to all observer when m_bObservableChanged is true. More...

Protected Attributes
std::atomic< bool >	m_bObservableChanged {false}
std::vector< Observer * >	m_observers
CCriticalSection	m_obsCritSection

Friends
class	ObservableMessageJob

Member Function Documentation

IsObserving()

bool Observable::IsObserving ( const Observer &  obs ) const

virtual

Check whether this observable is being observed by an observer.

Parameters

obs	The observer to check.

Returns

True if this observable is being observed by the given observer, false otherwise.

NotifyObservers()

void Observable::NotifyObservers ( const ObservableMessage  message = ObservableMessageNone )

virtual

Send a message to all observers when m_bObservableChanged is true.

Parameters

message

The message to send.

RegisterObserver()

void Observable::RegisterObserver ( Observer *  obs )

virtual

Register an observer.

Parameters

obs	The observer to register.

SendMessage()

void Observable::SendMessage ( const ObservableMessage  message )

protected

Send a message to all observer when m_bObservableChanged is true.

Parameters

obs	The observer that sends the message.
message	The message to send.

SetChanged()

void Observable::SetChanged ( bool  bSetTo = true )

virtual

Mark an observable changed.

Parameters

bSetTo

True to mark the observable changed, false to mark it as unchanged.

UnregisterObserver()

void Observable::UnregisterObserver ( Observer *  obs )

virtual

Unregister an observer.

Parameters

obs	The observer to unregister.

Member Data Documentation

m_bObservableChanged

std::atomic<bool> Observable::m_bObservableChanged {false}

protected

true when the observable is marked as changed, false otherwise

m_obsCritSection

CCriticalSection Observable::m_obsCritSection

mutableprotected

mutex

m_observers

std::vector<Observer *> Observable::m_observers

protected

all observers

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

• xbmc/utils/Observer.h
• xbmc/utils/Observer.cpp