00001 /*- 00002 * See the file LICENSE for redistribution information. 00003 * 00004 * Copyright (c) 1996, 1997, 1998, 1999, 2000 00005 * Sleepycat Software. All rights reserved. 00006 */ 00007 #include "config.h" 00008 00009 #ifndef lint 00010 static const char revid[] = "$Id: qam__upgrade_8c-source.html,v 1.1 2008年06月08日 10:21:47 sebdiaz Exp $"; 00011 #endif /* not lint */ 00012 00013 #ifndef NO_SYSTEM_INCLUDES 00014 #include <sys/types.h> 00015 00016 #include <errno.h> 00017 #include <limits.h> 00018 #include <string.h> 00019 #endif 00020 00021 #include "db_int.h" 00022 #include "db_page.h" 00023 #include "db_swap.h" 00024 #include "db_am.h" 00025 #include "db_upgrade.h" 00026 #include "qam_ext.h" 00027 00028 /* 00029 * CDB___qam_31_qammeta -- 00030 * Upgrade the database from version 1 to version 2. 00031 * 00032 * PUBLIC: int CDB___qam_31_qammeta __P((DB *, char *, u_int8_t *)); 00033 */ 00034 int 00035 CDB___qam_31_qammeta(dbp, real_name, buf) 00036 DB *dbp; 00037 char *real_name; 00038 u_int8_t *buf; 00039 { 00040 QMETA31 *newmeta; 00041 QMETA30 *oldmeta; 00042 00043 COMPQUIET(dbp, NULL); 00044 COMPQUIET(real_name, NULL); 00045 00046 newmeta = (QMETA31 *)buf; 00047 oldmeta = (QMETA30 *)buf; 00048 00049 /* 00050 * Copy the fields to their new locations. 00051 * They may overlap so start at the bottom and use memmove(). 00052 */ 00053 newmeta->rec_page = oldmeta->rec_page; 00054 newmeta->re_pad = oldmeta->re_pad; 00055 newmeta->re_len = oldmeta->re_len; 00056 newmeta->cur_recno = oldmeta->cur_recno; 00057 newmeta->first_recno = oldmeta->first_recno; 00058 newmeta->start = oldmeta->start; 00059 memmove(newmeta->dbmeta.uid, 00060 oldmeta->dbmeta.uid, sizeof(oldmeta->dbmeta.uid)); 00061 newmeta->dbmeta.flags = oldmeta->dbmeta.flags; 00062 newmeta->dbmeta.record_count = 0; 00063 newmeta->dbmeta.key_count = 0; 00064 ZERO_LSN(newmeta->dbmeta.alloc_lsn); 00065 00066 /* Update the version. */ 00067 newmeta->dbmeta.version = 2; 00068 00069 return (0); 00070 }