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Refactored Observer/ObserverNodePath and DatabasePager to improve their robustness.

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This commit is contained in:
Robert Osfield
2010-05-14 12:24:13 +00:00
parent 2b2ea4487a
commit 554adfc8e6
5 changed files with 88 additions and 151 deletions
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11
include/osg/Observer
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@@ -27,11 +27,6 @@ class OSG_EXPORT Observer
Observer();
virtual ~Observer();
/** Get the optional global observer mutex, this can be shared between all osg::Observer.*/
static OpenThreads::Mutex* getGlobalObserverMutex();
inline OpenThreads::Mutex* getObserverMutex() const { return osg::Observer::getGlobalObserverMutex(); }
/** objectUnreferenced(void*) is called when the observed object's referenced count goes to zero, indicating that
* the object will be deleted unless a new reference is made to it. If you wish to prevent deletion of the object
* then it's reference count should be incremented such as via taking a ref_ptr<> to it, if no refernce is taken
@@ -54,12 +49,13 @@ class OSG_EXPORT ObserverSet
ObserverSet();
~ObserverSet();
inline OpenThreads::Mutex* getObserverSetMutex() const { return osg::Observer::getGlobalObserverMutex(); }
inline OpenThreads::Mutex* getObserverSetMutex() const { return &_mutex; }
void addObserver(Observer* observer);
void removeObserver(Observer* observer);
void signalObjectUnreferenced(void* ptr);
void signalObjectDeleted(void* ptr);
typedef std::set<Observer*> Observers;
@@ -68,7 +64,8 @@ class OSG_EXPORT ObserverSet
protected:
Observers _observers;
mutable OpenThreads::Mutex _mutex;
Observers _observers;
};
}