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 |
void osg::Referenced::addObserver | ( | Observer * | observer | ) | const |
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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.
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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.
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inline |
Return the number of pointers currently referencing this object.
void osg::Referenced::removeObserver | ( | Observer * | observer | ) | const |
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, osgText::Text, osgText::GlyphTexture, osg::Drawable, osgText::TextBase, osgText::Glyph3D, osgSim::OverlayNode::OverlayData, osgText::Font, osgText::GlyphGeometry, osg::Group, osg::Object, osgSim::OverlayNode, osgText::Text3D, osg::LightSource, osg::Program, and osg::TexGenNode.
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protected |
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inline |
Decrement the reference count by one, indicating that a pointer to this object is no longer referencing it. If the reference count goes to zero, it is assumed that this object is no longer referenced and is automatically deleted.
int osg::Referenced::unref_nodelete | ( | ) | const |
Decrement the reference count by one, indicating that a pointer to this object is no longer 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.
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friend |
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mutableprotected |
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mutableprotected |