www.pudn.com > MP3CORD.rar > database.h

/*____________________________________________________________________________ 
 
        FreeAmp - The Free MP3 Player 
 
        Portions Copyright (C) 1999 EMusic.com 
 
        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., 675 Mass Ave, Cambridge, MA 02139, USA. 
 
        $Id: database.h,v 1.3 1999/11/25 17:51:08 ijr Exp $ 
____________________________________________________________________________*/ 
 
 
#ifndef INCLUDED_DATABASE_H_ 
#define INCLUDED_DATABASE_H_ 
 
#include "gdbm_fa.h" 
#include "mutex.h" 
 
#define DATABASE_VERSION_KEY "FREEAMP_DATABASE_VERSION" 
 
class Database 
{ 
 public: 
   Database(const char *name = NULL, int version = -1); 
   ~Database(); 
   bool  Working(void); 
    
   int   Insert(const char *key, char *content); 
   void  Remove(const char *key); 
   char *Value(const char *key); 
   int   Exists(const char *key); 
   char *NextKey(char *key); 
   void  Sync(void); 
 
 private: 
   bool  TestDatabaseVersion(int version); 
   void  StoreDatabaseVersion(int version); 
 
   GDBM_FILE m_dbase; 
   Mutex    *m_lock; 
}; 
 
#endif