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openmw-tes3mp/components/resource/resourcemanager.hpp

53 lines
1.3 KiB
C++

#ifndef OPENMW_COMPONENTS_RESOURCE_MANAGER_H
#define OPENMW_COMPONENTS_RESOURCE_MANAGER_H
#include <osg/ref_ptr>
namespace VFS
{
class Manager;
}
namespace osg
{
class Stats;
class State;
}
namespace Resource
{
class ObjectCache;
/// @brief Base class for managers that require a virtual file system and object cache.
/// @par This base class implements clearing of the cache, but populating it and what it's used for is up to the individual sub classes.
class ResourceManager
{
public:
ResourceManager(const VFS::Manager* vfs);
virtual ~ResourceManager();
/// Clear cache entries that have not been referenced for longer than expiryDelay.
virtual void updateCache(double referenceTime);
/// Clear all cache entries.
virtual void clearCache();
/// How long to keep objects in cache after no longer being referenced.
void setExpiryDelay (double expiryDelay);
const VFS::Manager* getVFS() const;
virtual void reportStats(unsigned int frameNumber, osg::Stats* stats) const {}
virtual void releaseGLObjects(osg::State* state);
protected:
const VFS::Manager* mVFS;
osg::ref_ptr<Resource::ObjectCache> mCache;
double mExpiryDelay;
};
}
#endif