src/framework/Utilities/LinkedReference/RefManager.h

   1 /*
   2  * Copyright (C) 2005-2008 MaNGOS <http://getmangos.com/>
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  17  */
  18
  19 #ifndef _REFMANAGER_H
  20 #define _REFMANAGER_H
  21 //=====================================================
  22
  23 #include "Utilities/LinkedList.h"
  24 #include "Utilities/LinkedReference/Reference.h"
  25
  26 template <class TO, class FROM> class RefManager : public LinkedListHead
  27 {
  28     public:
  29         typedef LinkedListHead::Iterator< Reference<TO, FROM> > iterator;
  30         RefManager() { }
  31         virtual ~RefManager() { clearReferences(); }
  32
  33         Reference<TO, FROM>* getFirst() { return ((Reference<TO, FROM>*) LinkedListHead::getFirst()); }
  34         Reference<TO, FROM>* getLast() { return ((Reference<TO, FROM>*) LinkedListHead::getLast()); }
  35
  36         iterator begin() { return iterator(getFirst()); }
  37         iterator end() { return iterator(NULL); }
  38         iterator rbegin() { return iterator(getLast()); }
  39         iterator rend() { return iterator(NULL); }
  40
  41         void clearReferences()
  42         {
  43             LinkedListElement* ref;
  44             while((ref = getFirst()) != NULL)
  45             {
  46                 ((Reference<TO, FROM>*) ref)->invalidate();
  47                 ref->delink();                              // the delink might be already done by invalidate(), but doing it here again does not hurt and insures an empty list
  48             }
  49         }
  50 };
  51
  52 //=====================================================
  53 #endif