usr/src/head/mdmn_changelog.h

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License, Version 1.0 only
   6  * (the "License").  You may not use this file except in compliance
   7  * with the License.
   8  *
   9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10  * or http://www.opensolaris.org/os/licensing.
  11  * See the License for the specific language governing permissions
  12  * and limitations under the License.
  13  *
  14  * When distributing Covered Code, include this CDDL HEADER in each
  15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16  * If applicable, add the following below this CDDL HEADER, with the
  17  * fields enclosed by brackets "[]" replaced with your own identifying
  18  * information: Portions Copyright [yyyy] [name of copyright owner]
  19  *
  20  * CDDL HEADER END
  21  */
  22 /*
  23  * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26
  27 #ifndef _MDMN_CHANGELOG_H
  28 #define _MDMN_CHANGELOG_H
  29
  30 #pragma ident   "%Z%%M% %I%     %E% SMI"
  31
  32 #include <sys/lvm/mdmn_commd.h>
  33
  34 #ifdef  __cplusplus
  35 extern "C" {
  36 #endif
  37
  38 #define MD_MN_CHANGELOG_RECORD_REVISION 0x00010000;
  39
  40 /* flags for log record entries */
  41 #define MD_MN_LR_INUSE  0x00000001U     /* Log entry is in use */
  42
  43 #define MDMN_CLF_SNARFED        0x1
  44 #define MDMN_CLF_RESETCACHE     0x2
  45 #define MDMN_CLF_RESETLOG       0x4
  46 #define MDMN_CLF_RESETALL       (MDMN_CLF_RESETCACHE | MDMN_CLF_RESETLOG)
  47
  48
  49 /* changelog record entry */
  50 typedef struct mdmn_changelog_record {
  51         uint_t                          lr_revision;
  52         uint_t                          lr_flags;
  53         mddb_recid_t                    lr_selfid;
  54         md_mn_msgclass_t                lr_class;
  55         size32_t                        lr_msglen;
  56         md_mn_msg_t                     lr_msg;
  57 } mdmn_changelog_record_t;
  58
  59 #define lr_msgtype      lr_msg.msg_type
  60 #define lr_msgid        lr_msg.msg_msgid
  61 #define lr_setno        lr_msg.msg_setno
  62
  63 /* ondisk version */
  64 typedef struct mdmn_changelog_record_od {
  65         uint_t                          lr_revision;
  66         uint_t                          lr_flags;
  67         mddb_recid_t                    lr_selfid;
  68         md_mn_msgclass_t                lr_class;
  69         size32_t                        lr_msglen;
  70         int                             spare[5];
  71         md_mn_msg_od_t                  lr_od_msg;
  72 } mdmn_changelog_record_od_t;
  73
  74 #define lr_od_msgtype   lr_od_msg.msg_type
  75 #define lr_od_msgid     lr_od_msg.msg_msgid
  76 #define lr_od_setno     lr_od_msg.msg_setno
  77
  78
  79 extern  int     mdmn_allocate_changelog(mdsetname_t *, md_error_t *);
  80 extern  int     mdmn_reset_changelog(mdsetname_t *, md_error_t *, int flags);
  81 extern  int     mdmn_log_msg(md_mn_msg_t *);
  82 extern  int     mdmn_unlog_msg(md_mn_msg_t *);
  83 extern  int     mdmn_snarf_changelog(set_t, md_error_t *);
  84 extern  mdmn_changelog_record_t *mdmn_get_changelogrec(set_t,
  85                                                         md_mn_msgclass_t);
  86
  87 #ifdef  __cplusplus
  88 }
  89 #endif
  90
  91 #endif  /* _MDMN_CHANGELOG_H */