OgreLifetime.h

#pragma once
#ifdef FH_VISUALIZATION
 
#   include <OgreRoot.h>
#   include <utility>
#   include <vector>
 
namespace visual
{
 
inline bool OgreRootIsAlive()
{
   return Ogre::Root::getSingletonPtr() != nullptr;
}
 
template<typename ResourcePtr>
void ParkForShutdown(ResourcePtr& handle)
{
   static std::vector<ResourcePtr>* const s_parked = new std::vector<ResourcePtr>();
   s_parked->push_back(std::move(handle));
   handle = ResourcePtr();
}
 
template<typename ResourcePtr, typename ResourceManager>
void ReleaseResource(ResourcePtr& handle, ResourceManager* manager)
{
   if (!handle) {
      return;
   }
   if (!OgreRootIsAlive() || manager == nullptr) {
      ParkForShutdown(handle);
      return;
   }
   manager->remove(handle);
   handle = ResourcePtr();
}
 
} // namespace visual
#endif // FH_VISUALIZATION