FGFS-4.1/OpenSceneGraph
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Fixed effective leak in Program::PerContextProgram caused by previously osg::State keeping a set of std::ref_ptr<Program::PerContextProgram> without ever pruning this list.

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The fix was to convert the osg::State to use C pointers for the set of applied PerContexProgram objects, and use the osg::Oberver mechanism to avoid dangling pointers for being maintained in osg::State.
This commit is contained in:
Robert Osfield
2009-01-26 15:16:24 +00:00
parent 55a0381687
commit 69f9377093
5 changed files with 47 additions and 10 deletions
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4
src/osg/Referenced.cpp
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@@ -309,7 +309,7 @@ void Referenced::unref_nodelete() const
#endif
}
void Referenced::addObserver(Observer* observer)
void Referenced::addObserver(Observer* observer) const
{
#if defined(_OSG_REFERENCED_USE_ATOMIC_OPERATIONS)
ObserverSetData* observerSetData = static_cast<ObserverSetData*>(_observerSetDataPtr.get());
@@ -337,7 +337,7 @@ void Referenced::addObserver(Observer* observer)
#endif
}
void Referenced::removeObserver(Observer* observer)
void Referenced::removeObserver(Observer* observer) const
{
#if defined(_OSG_REFERENCED_USE_ATOMIC_OPERATIONS)
ObserverSetData* observerSetData = static_cast<ObserverSetData*>(_observerSetDataPtr.get());

17
src/osg/State.cpp
View File

@@ -90,6 +90,23 @@ State::State():
State::~State()
{
for(AppliedProgramObjectSet::iterator itr = _appliedProgramObjectSet.begin();
itr != _appliedProgramObjectSet.end();
++itr)
{
(*itr)->removeObserver(this);
}
}
void State::objectDeleted(void* object)
{
const Program::PerContextProgram* ppcp = reinterpret_cast<const Program::PerContextProgram*>(object);
AppliedProgramObjectSet::iterator itr = _appliedProgramObjectSet.find(ppcp);
if (itr != _appliedProgramObjectSet.end())
{
osg::notify(osg::NOTICE)<<"Removing _appliedProgramObjectSet entry "<<ppcp<<std::endl;
_appliedProgramObjectSet.erase(itr);
}
}
void State::reset()

6
src/osgWrappers/osg/State.cpp
View File

@@ -43,6 +43,7 @@ END_REFLECTOR
BEGIN_OBJECT_REFLECTOR(osg::State)
I_DeclaringFile("osg/State");
I_BaseType(osg::Referenced);
I_BaseType(osg::Observer);
I_Constructor0(____State,
"",
"");
@@ -716,6 +717,11 @@ BEGIN_OBJECT_REFLECTOR(osg::State)
__void__initializeExtensionProcs,
"Initialize extension used by osg:State. ",
"");
I_Method1(void, objectDeleted, IN, void *, object,
Properties::VIRTUAL,
__void__objectDeleted__void_P1,
"",
"");