openscenegraph
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Public Member Functions | |
Referenced () | |
Referenced (bool threadSafeRefUnref) | |
Referenced (const Referenced &) | |
Referenced & | operator= (const Referenced &) |
virtual void | setThreadSafeRefUnref (bool threadSafe) |
bool | getThreadSafeRefUnref () const |
OpenThreads::Mutex * | getRefMutex () const |
int | ref () const |
int | unref () const |
int | unref_nodelete () const |
int | referenceCount () const |
ObserverSet * | getObserverSet () const |
ObserverSet * | getOrCreateObserverSet () const |
void | addObserver (Observer *observer) const |
void | removeObserver (Observer *observer) const |
Static Public Member Functions | |
static OpenThreads::Mutex * | getGlobalReferencedMutex () |
static void | setThreadSafeReferenceCounting (bool enableThreadSafeReferenceCounting) |
static bool | getThreadSafeReferenceCounting () |
static void | setDeleteHandler (DeleteHandler *handler) |
static DeleteHandler * | getDeleteHandler () |
Protected Member Functions | |
virtual | ~Referenced () |
void | signalObserversAndDelete (bool signalDelete, bool doDelete) const |
void | deleteUsingDeleteHandler () const |
Protected Attributes | |
OpenThreads::AtomicPtr | _observerSet |
OpenThreads::Atomic | _refCount |
Friends | |
class | DeleteHandler |
Base class for providing reference counted objects.
osg::Referenced::Referenced | ( | ) |
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explicit |
osg::Referenced::Referenced | ( | const Referenced & | ) |
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protectedvirtual |
Add a Observer that is observing this object, notify the Observer when this object gets deleted.
Referenced by osg::State::setLastAppliedProgramObject().
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protected |
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static |
Get a DeleteHandler.
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static |
Get the optional global Referenced mutex, this can be shared between all osg::Referenced.
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inline |
Get the ObserverSet if one is attached, otherwise return NULL.
ObserverSet* osg::Referenced::getOrCreateObserverSet | ( | ) | const |
Get the ObserverSet if one is attached, otherwise create an ObserverSet, attach it, then return this newly created ObserverSet.
Referenced by osg::observer_ptr< Skeleton >::observer_ptr(), and osg::observer_ptr< Skeleton >::operator=().
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inline |
Get the mutex used to ensure thread safety of ref()/unref().
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static |
Get whether reference counting is active.
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inline |
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inline |
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inline |
Increment the reference count by one, indicating that this object has another pointer which is referencing it.
References _refCount.
Referenced by osg::intrusive_ptr_add_ref().
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inline |
Return the number of pointers currently referencing this object.
Remove Observer that is observing this object.
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static |
Set a DeleteHandler to which deletion of all referenced counted objects will be delegated.
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static |
Set whether reference counting should use a mutex for thread safe reference counting.
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virtual |
Set whether to use a mutex to ensure ref() and unref() are thread safe.
Reimplemented in osg::StateSet, osg::Node, osg::Drawable, osgText::Text, osgText::GlyphTexture, osgText::TextBase, osgText::Glyph3D, osgSim::OverlayNode::OverlayData, osgText::Font, osg::Group, osg::Geode, osgText::GlyphGeometry, osgSim::OverlayNode, osgText::Text3D, osg::Object, osg::LightSource, osg::Program, and osg::TexGenNode.
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protected |
Referenced by unref().
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inline |
Decrement the reference count by one, indicating that a pointer to this object is referencing it. If the reference count goes to zero, it is assumed that this object is no longer referenced and is automatically deleted.
References _refCount, and signalObserversAndDelete().
Referenced by osg::intrusive_ptr_release().
int osg::Referenced::unref_nodelete | ( | ) | const |
Decrement the reference count by one, indicating that a pointer to this object is referencing it. However, do not delete it, even if ref count goes to 0. Warning, unref_nodelete() should only be called if the user knows exactly who will be responsible for, one should prefer unref() over unref_nodelete() as the latter can lead to memory leaks.
Referenced by osg::observer_ptr< Skeleton >::lock().
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friend |
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mutableprotected |
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mutableprotected |