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#ifndef OPENMW_COMPONENTS_UNREFQUEUE_H
#define OPENMW_COMPONENTS_UNREFQUEUE_H
#include <osg/Referenced>
#include <osg/ref_ptr>
#include <vector>
namespace SceneUtil
{
class WorkQueue;
/// @brief Handles unreferencing of objects through the WorkQueue. Typical use scenario
/// would be the main thread pushing objects that are no longer needed, and the background thread deleting them.
class UnrefQueue
{
public:
/// Adds an object to the list of objects to be unreferenced. Call from the main thread.
void push(osg::ref_ptr<osg::Referenced>&& obj) { mObjects.push_back(std::move(obj)); }
void push(const osg::ref_ptr<osg::Referenced>& obj) { mObjects.push_back(obj); }
/// Adds a WorkItem to the given WorkQueue that will clear the list of objects in a worker thread,
/// thus unreferencing them. Call from the main thread.
void flush(SceneUtil::WorkQueue& workQueue);
std::size_t getSize() const { return mObjects.size(); }
private:
std::vector<osg::ref_ptr<osg::Referenced>> mObjects;
};
}
#endif
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