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/* Copyright (C) 2003 MySQL AB
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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
#ifndef LOGHANDLERLIST_H
#define LOGHANDLERLIST_H
class LogHandler;
#include <ndb_global.h>
/**
* Provides a simple linked list of log handlers.
*
* @see LogHandler
* @version #@ $Id: LogHandlerList.hpp,v 1.2 2002/03/14 13:07:21 eyualex Exp $
*/
class LogHandlerList
{
public:
/**
* Default Constructor.
*/
LogHandlerList();
/**
* Destructor.
*/
~LogHandlerList();
/**
* Adds a new log handler.
*
* @param pNewHandler log handler.
*/
void add(LogHandler* pNewHandler);
/**
* Removes a log handler from the list and call its destructor.
*
* @param pRemoveHandler the handler to remove
*/
bool remove(LogHandler* pRemoveHandler);
/**
* Removes all log handlers.
*/
void removeAll();
/**
* Returns the next log handler in the list.
* returns a log handler or NULL.
*/
LogHandler* next();
/**
* Returns the size of the list.
*/
int size() const;
private:
/** List node */
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
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