LogHandlerList.hpp
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上传日期:2022-05-23
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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; either version 2 of the License, or
- (at your option) any later version.
- 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