osg::ObserverSet Class Reference

Class used by osg::Referenced to track the observers associated with it. More...

Inheritance diagram for osg::ObserverSet:

Public Types
typedef std::set< Observer * >	Observers

Public Member Functions
	ObserverSet (const Referenced *observedObject)
Referenced *	getObserverdObject ()
const Referenced *	getObserverdObject () const
Referenced *	addRefLock ()
	"Lock" a Referenced object i.e., protect it from being deleted by incrementing its reference count. More...
OpenThreads::Mutex *	getObserverSetMutex () const
void	addObserver (Observer *observer)
void	removeObserver (Observer *observer)
void	signalObjectDeleted (void *ptr)
Observers &	getObservers ()
const Observers &	getObservers () const
Public Member Functions inherited from osg::Referenced
	Referenced ()
	Referenced (bool threadSafeRefUnref)
	Referenced (const Referenced &)
Referenced &	operator= (const Referenced &)
virtual void	setThreadSafeRefUnref (bool threadSafe)
	Set whether to use a mutex to ensure ref() and unref() are thread safe. More...
bool	getThreadSafeRefUnref () const
	Get whether a mutex is used to ensure ref() and unref() are thread safe. More...
OpenThreads::Mutex *	getRefMutex () const
	Get the mutex used to ensure thread safety of ref()/unref(). More...
int	ref () const
	Increment the reference count by one, indicating that this object has another pointer which is referencing it. More...
int	unref () const
	Decrement the reference count by one, indicating that a pointer to this object is no longer referencing it. More...
int	unref_nodelete () const
	Decrement the reference count by one, indicating that a pointer to this object is no longer referencing it. More...
int	referenceCount () const
	Return the number of pointers currently referencing this object. More...
ObserverSet *	getObserverSet () const
	Get the ObserverSet if one is attached, otherwise return NULL. More...
ObserverSet *	getOrCreateObserverSet () const
	Get the ObserverSet if one is attached, otherwise create an ObserverSet, attach it, then return this newly created ObserverSet. More...
void	addObserver (Observer *observer) const
	Add a Observer that is observing this object, notify the Observer when this object gets deleted. More...
void	removeObserver (Observer *observer) const
	Remove Observer that is observing this object. More...

Protected Member Functions
	ObserverSet (const ObserverSet &rhs)
ObserverSet &	operator= (const ObserverSet &)
virtual	~ObserverSet ()
Protected Member Functions inherited from osg::Referenced
virtual	~Referenced ()
void	signalObserversAndDelete (bool signalDelete, bool doDelete) const
void	deleteUsingDeleteHandler () const

Protected Attributes
OpenThreads::Mutex	_mutex
Referenced *	_observedObject
Observers	_observers
Protected Attributes inherited from osg::Referenced
OpenThreads::AtomicPtr	_observerSet
OpenThreads::Atomic	_refCount

Additional Inherited Members
Static Public Member Functions inherited from osg::Referenced
static OpenThreads::Mutex *	getGlobalReferencedMutex ()
	Get the optional global Referenced mutex, this can be shared between all osg::Referenced. More...
static void	setThreadSafeReferenceCounting (bool enableThreadSafeReferenceCounting)
	Set whether reference counting should use a mutex for thread safe reference counting. More...
static bool	getThreadSafeReferenceCounting ()
	Get whether reference counting is active. More...
static void	setDeleteHandler (DeleteHandler *handler)
	Set a DeleteHandler to which deletion of all referenced counted objects will be delegated. More...
static DeleteHandler *	getDeleteHandler ()
	Get a DeleteHandler. More...

Detailed Description

Class used by osg::Referenced to track the observers associated with it.

Member Typedef Documentation

typedef std::set<Observer*> osg::ObserverSet::Observers

Constructor & Destructor Documentation

osg::ObserverSet::ObserverSet

(

const Referenced *

observedObject

)

osg::ObserverSet::ObserverSet ( const ObserverSet &  rhs )

inlineprotected

virtual osg::ObserverSet::~ObserverSet ( )

protectedvirtual

Member Function Documentation

void osg::ObserverSet::addObserver

(

Observer *

observer

)

Referenced* osg::ObserverSet::addRefLock

(

)

"Lock" a Referenced object i.e., protect it from being deleted by incrementing its reference count.

returns null if object doesn't exist anymore.

Referenced* osg::ObserverSet::getObserverdObject ( )

inline

const Referenced* osg::ObserverSet::getObserverdObject ( ) const

inline

Observers& osg::ObserverSet::getObservers ( )

inline

const Observers& osg::ObserverSet::getObservers ( ) const

inline

OpenThreads::Mutex* osg::ObserverSet::getObserverSetMutex ( ) const

inline

ObserverSet& osg::ObserverSet::operator= ( const ObserverSet &  )

inlineprotected

void osg::ObserverSet::removeObserver

(

Observer *

observer

)

void osg::ObserverSet::signalObjectDeleted

(

void *

ptr

)

Member Data Documentation

OpenThreads::Mutex osg::ObserverSet::_mutex

mutableprotected

Referenced* osg::ObserverSet::_observedObject

protected

Observers osg::ObserverSet::_observers

protected

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

• osg/Observer