Domaine_dis_cache.h

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#ifndef Domaine_dis_cache_included
#define Domaine_dis_cache_included
 
#include <Domaine_forward.h>
 
#include <TClearable.h>
#include <memory>
#include <Nom.h>
#include <map>
 
class Domaine_dis_base;
class Discretisation_base;
 
/*! @brief Cache of discretized domains. Avoid repeating the discretize operation when not
 * necessary.
 *
 * This is a singleton class.
 */
class Domaine_dis_cache : public TClearable
{
public:
  static Domaine_dis_cache& Get_instance();
  static void Clear();
 
  static Domaine_dis_base& Build_or_get(const Nom& type, const Domaine& dom, const Discretisation_base * disc=nullptr);
  static Domaine_dis_base& Build_or_get_poly_post(const Nom& type, const Domaine& dom);
 
  Domaine_dis_base& build_or_get(const Nom& type, const Domaine& dom, const Discretisation_base * disc=nullptr);
  Domaine_dis_base& build_or_get_poly_post(const Nom& type, const Domaine& dom);
 
  void clear() override { cache_.clear(); }
 
private:
  Domaine_dis_cache() { }
  /*! The actual cache hodling the true Domaine_dis objects.
  * Store them as shared_ptr since we need easy duplication, notably for NO_FACE_ discretisations.
  * See build_or_get() method.
  */
  std::map<std::string, OWN_PTR(Domaine_dis_base)> cache_;
};
 
#endif