LogHandlerList.hpp

/*
   Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; version 2 of the License.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301  USA
*/

#ifndef LOGHANDLERLIST_H
#define LOGHANDLERLIST_H

class LogHandler;
#include <ndb_global.h>

class LogHandlerList
{
public:
  LogHandlerList();

  ~LogHandlerList();

  bool add(LogHandler* pNewHandler);

  bool remove(LogHandler* pRemoveHandler);

  void removeAll();

  LogHandler* next();

  int size() const;
private:
  struct LogHandlerNode
  {
    LogHandlerNode* pPrev;
    LogHandlerNode* pNext;    
    LogHandler* pHandler;
  };

  LogHandlerNode* next(LogHandlerNode* pNode);
  LogHandlerNode* prev(LogHandlerNode* pNode);

  void removeNode(LogHandlerNode* pNode);

  int m_size;

  LogHandlerNode* m_pHeadNode;
  LogHandlerNode* m_pTailNode;
  LogHandlerNode* m_pCurrNode;
};

#endif