CDE/cde/lib/DtMmdb/oliasdb/user_base.h

/*
 * CDE - Common Desktop Environment
 *
 * Copyright (c) 1993-2012, The Open Group. All rights reserved.
 *
 * These libraries and programs are free software; you can
 * redistribute them and/or modify them under the terms of the GNU
 * Lesser General Public License as published by the Free Software
 * Foundation; either version 2 of the License, or (at your option)
 * any later version.
 *
 * These libraries and programs are distributed in the hope that
 * they will be useful, but WITHOUT ANY WARRANTY; without even the
 * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
 * PURPOSE. See the GNU Lesser General Public License for more
 * details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with these libraries and programs; if not, write
 * to the Free Software Foundation, Inc., 51 Franklin Street, Fifth
 * Floor, Boston, MA 02110-1301 USA
 */
/*
 * $XConsortium: user_base.h /main/4 1996/06/11 17:31:14 cde-hal $
 *
 * Copyright (c) 1992 HAL Computer Systems International, Ltd.
 * All rights reserved.  Unpublished -- rights reserved under
 * the Copyright Laws of the United States.  USE OF A COPYRIGHT
 * NOTICE IS PRECAUTIONARY ONLY AND DOES NOT IMPLY PUBLICATION
 * OR DISCLOSURE.
 * 
 * THIS SOFTWARE CONTAINS CONFIDENTIAL INFORMATION AND TRADE
 * SECRETS OF HAL COMPUTER SYSTEMS INTERNATIONAL, LTD.  USE,
 * DISCLOSURE, OR REPRODUCTION IS PROHIBITED WITHOUT THE
 * PRIOR EXPRESS WRITTEN PERMISSION OF HAL COMPUTER SYSTEMS
 * INTERNATIONAL, LTD.
 * 
 *                         RESTRICTED RIGHTS LEGEND
 * Use, duplication, or disclosure by the Government is subject
 * to the restrictions as set forth in subparagraph (c)(l)(ii)
 * of the Rights in Technical Data and Computer Software clause
 * at DFARS 252.227-7013.
 *
 *          HAL COMPUTER SYSTEMS INTERNATIONAL, LTD.
 *                  1315 Dell Avenue
 *                  Campbell, CA  95008
 * 
 */


#ifndef _user_base_h
#define _user_base_h 1

#include "utility/funcs.h"
#include "utility/rw_lock.h"
#include "api/utility.h"
#include "api/base.h"
#include "api/transaction.h"
#include "object/oid_list.h"
#include "oliasdb/olias_consts.h"

/*************************************/
// The user_base class
/*************************************/

class user_base : public base
{

public:
   enum rw_flag_t { READ, WRITE };
   enum checking_status_t { SUCC,
                            NO_BASE,
                            FAIL,
/*
                            NO_READ_PERMISSION,
                            NO_WRITE_PERMISSION,
*/
                            CREATE_LOCKFILE_FAIL,
                            RLOCK_FAIL,
                            WLOCK_FAIL
                          };

   checking_status_t open_status() { return checking_status ; }

   user_base( const char* base_dir, 
             const char* base_name, 
             const char* base_desc,
             const char* spec_path,
             rw_flag_t = user_base::READ
            );
   user_base(const char* spec_path, rw_flag_t = user_base::READ);
   virtual ~user_base();

   Boolean define();
   rw_flag_t rw_mode() { return rw_flag; };

   transaction& trans() { return ubase_trans; };

protected:
   void _init();

   user_base::checking_status_t check_mode();
   user_base::checking_status_t check_lock();

   void clean_up();


protected:
   ostream* backup_file;
   rw_flag_t rw_flag;
   checking_status_t checking_status;

   char atomic_lock_path[PATHSIZ];
   char write_lock_path[PATHSIZ];
   char ai_path[PATHSIZ];
   int offset;

   desc* first_desc_ptr;
   const char* spec_name;

   transaction ubase_trans;

   object_dict *f_obj_dict;
};

typedef user_base* user_basePtr;

extern user_basePtr default_user_base;

#endif