roles.h

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#ifndef ROLES_H_INCLUDED
#define ROLES_H_INCLUDED
 
// Forward declarations
class THD;
struct LEX_USER;
template <class T>
class List;
class Security_context;
enum class role_enum;
 
namespace Roles {
class Role_activation {
 public:
  explicit Role_activation(THD *thd, Security_context *sctx, role_enum type,
                           const List<LEX_USER> *role_list = nullptr,
                           bool raise_error = true);
  Role_activation(const Role_activation &) = delete;
  Role_activation(Role_activation &&) = delete;
  Role_activation &operator=(const Role_activation &) = delete;
  Role_activation &operator=(Role_activation &&) = delete;
  ~Role_activation() { m_valid = false; }
 
  bool activate();
 
 private:
  bool activate_role_none();
  bool activate_role_default();
  bool activate_role_all();
  bool activate_role_name();
 
 private:
  THD *m_thd;
  Security_context *m_sctx;
  role_enum m_type;
  const List<LEX_USER> *m_role_list;
  bool m_raise_error;
  bool m_valid;
};
}  // namespace Roles
 
#endif /* ROLES_H_INCLUDED */