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openmw-tes3mp/components/sceneutil/unrefqueue.hpp

45 lines
1.2 KiB
C++

#ifndef OPENMW_COMPONENTS_UNREFQUEUE_H
#define OPENMW_COMPONENTS_UNREFQUEUE_H
#include <deque>
#include <osg/ref_ptr>
#include <osg/Referenced>
#include <components/sceneutil/workqueue.hpp>
namespace SceneUtil
{
class WorkQueue;
class UnrefWorkItem : public SceneUtil::WorkItem
{
public:
std::deque<osg::ref_ptr<const osg::Referenced> > mObjects;
void doWork() override;
};
/// @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 osg::Referenced
{
public:
UnrefQueue();
/// Adds an object to the list of objects to be unreferenced. Call from the main thread.
void push(const osg::Referenced* 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);
unsigned int getNumItems() const;
private:
osg::ref_ptr<UnrefWorkItem> mWorkItem;
};
}
#endif