/*
 * Copyright (C) 2008 Search Solution Corporation. All rights reserved by Search Solution. 
 *
 *   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 
 *
 */


/*
 * release_string.h - release related information (at client and server)
 */

#ifndef _RELEASE_STRING_H_
#define _RELEASE_STRING_H_

#ident "$Id$"

#include "config.h"

#define REL_MAX_RELEASE_LENGTH 15

/*
 * REL_FIXUP_FUNCTION - Signature for a function that can part of
 *                      a disk compatibility rule.
 *                      An array of these functions can be returned by
 *                      rel_is_disk_compatible.
 */
typedef void (*REL_FIXUP_FUNCTION) (void);

/*
 * REL_COMPATIBILITY - Describes the various types of compatibility we can have.
 *                     Returned by the rel_is_disk_compatible function.
 */
typedef enum
{
  REL_NOT_COMPATIBLE,
  REL_FULLY_COMPATIBLE,
  REL_FORWARD_COMPATIBLE,
  REL_BACKWARD_COMPATIBLE
} REL_COMPATIBILITY;

extern const char *rel_name (void);
extern const char *rel_release_string (void);
extern const char *rel_major_release_string (void);
extern const char *rel_build_number (void);
extern const char *rel_copyright_header (void);
extern const char *rel_copyright_body (void);
extern float rel_disk_compatible (void);
extern void rel_set_disk_compatible (float level);

extern int rel_compare (const char *rel_a, const char *rel_b);
extern REL_COMPATIBILITY rel_is_disk_compatible (float db_level,
						 REL_FIXUP_FUNCTION **
						 fixups);
extern bool rel_is_log_compatible (const char *writer_rel_str,
				   const char *reader_rel_str);

#endif /* _RELEASE_STRING_H_ */