mariadb/storage/maria/ma_control_file.h
unknown 46922b5125 GPL license update (same change as was done for all files in 5.1).
storage/maria/Makefile.am:
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storage/maria/ft_maria.c:
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storage/maria/ha_maria.cc:
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storage/maria/ha_maria.h:
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storage/maria/lockman.c:
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storage/maria/lockman.h:
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storage/maria/ma_bitmap.c:
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storage/maria/ma_blockrec.c:
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storage/maria/ma_blockrec.h:
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storage/maria/ma_cache.c:
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storage/maria/ma_changed.c:
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storage/maria/ma_check.c:
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storage/maria/ma_checkpoint.c:
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storage/maria/ma_checkpoint.h:
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storage/maria/ma_checksum.c:
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storage/maria/ma_close.c:
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storage/maria/ma_control_file.c:
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storage/maria/ma_control_file.h:
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storage/maria/ma_create.c:
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storage/maria/ma_dbug.c:
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storage/maria/ma_delete.c:
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storage/maria/ma_delete_all.c:
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storage/maria/ma_delete_table.c:
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storage/maria/ma_dynrec.c:
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storage/maria/ma_extra.c:
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storage/maria/ma_ft_boolean_search.c:
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storage/maria/ma_ft_eval.c:
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storage/maria/ma_ft_eval.h:
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storage/maria/ma_ft_nlq_search.c:
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storage/maria/ma_ft_parser.c:
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storage/maria/ma_ft_stem.c:
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storage/maria/ma_ft_test1.c:
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storage/maria/ma_ft_test1.h:
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storage/maria/ma_ft_update.c:
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storage/maria/ma_ftdefs.h:
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storage/maria/ma_fulltext.h:
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storage/maria/ma_info.c:
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storage/maria/ma_init.c:
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storage/maria/ma_key.c:
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storage/maria/ma_keycache.c:
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storage/maria/ma_least_recently_dirtied.c:
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storage/maria/ma_least_recently_dirtied.h:
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storage/maria/ma_locking.c:
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storage/maria/ma_open.c:
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storage/maria/ma_packrec.c:
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storage/maria/ma_page.c:
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storage/maria/ma_panic.c:
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storage/maria/ma_preload.c:
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storage/maria/ma_range.c:
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storage/maria/ma_recovery.c:
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storage/maria/ma_recovery.h:
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storage/maria/ma_rename.c:
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storage/maria/ma_rfirst.c:
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storage/maria/ma_rkey.c:
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storage/maria/ma_rlast.c:
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storage/maria/ma_rnext.c:
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storage/maria/ma_rnext_same.c:
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storage/maria/ma_rprev.c:
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storage/maria/ma_rrnd.c:
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storage/maria/ma_rsame.c:
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storage/maria/ma_rsamepos.c:
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storage/maria/ma_rt_index.c:
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storage/maria/ma_rt_index.h:
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storage/maria/ma_rt_key.c:
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storage/maria/ma_rt_key.h:
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storage/maria/ma_rt_mbr.c:
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storage/maria/ma_rt_mbr.h:
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storage/maria/ma_rt_split.c:
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storage/maria/ma_rt_test.c:
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storage/maria/ma_scan.c:
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storage/maria/ma_search.c:
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storage/maria/ma_sort.c:
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storage/maria/ma_sp_defs.h:
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storage/maria/ma_sp_key.c:
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storage/maria/ma_sp_test.c:
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storage/maria/ma_static.c:
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storage/maria/ma_statrec.c:
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storage/maria/ma_test1.c:
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storage/maria/ma_test2.c:
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storage/maria/ma_test3.c:
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storage/maria/ma_unique.c:
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storage/maria/ma_update.c:
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storage/maria/ma_write.c:
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storage/maria/maria_chk.c:
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storage/maria/maria_def.h:
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storage/maria/maria_ftdump.c:
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storage/maria/maria_pack.c:
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storage/maria/tablockman.c:
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storage/maria/tablockman.h:
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storage/maria/trnman.c:
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storage/maria/trnman.h:
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2.5 KiB
C

/* Copyright (C) 2006 MySQL AB & MySQL Finland AB & TCX DataKonsult AB
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 */
/*
WL#3234 Maria control file
First version written by Guilhem Bichot on 2006-04-27.
*/
#define CONTROL_FILE_BASE_NAME "maria_control"
/*
indicate absence of the log file number; first log is always number 1, 0 is
impossible.
*/
#define CONTROL_FILE_IMPOSSIBLE_FILENO 0
/* logs always have a header */
#define CONTROL_FILE_IMPOSSIBLE_LOG_OFFSET 0
/* indicate absence of LSN. */
#define CONTROL_FILE_IMPOSSIBLE_LSN ((LSN)0)
/* Here is the interface of this module */
/*
LSN of the last checkoint
(if last_checkpoint_lsn == CONTROL_FILE_IMPOSSIBLE_LSN
then there was never a checkpoint)
*/
extern LSN last_checkpoint_lsn;
/*
Last log number (if last_logno ==
CONTROL_FILE_IMPOSSIBLE_FILENO then there is no log file yet)
*/
extern uint32 last_logno;
typedef enum enum_control_file_error {
CONTROL_FILE_OK= 0,
CONTROL_FILE_TOO_SMALL,
CONTROL_FILE_TOO_BIG,
CONTROL_FILE_BAD_MAGIC_STRING,
CONTROL_FILE_BAD_CHECKSUM,
CONTROL_FILE_UNKNOWN_ERROR /* any other error */
} CONTROL_FILE_ERROR;
#define CONTROL_FILE_UPDATE_ALL 0
#define CONTROL_FILE_UPDATE_ONLY_LSN 1
#define CONTROL_FILE_UPDATE_ONLY_LOGNO 2
/*
Looks for the control file. If absent, it's a fresh start, create file.
If present, read it to find out last checkpoint's LSN and last log.
Called at engine's start.
*/
CONTROL_FILE_ERROR ma_control_file_create_or_open();
/*
Write information durably to the control file.
Called when we have created a new log (after syncing this log's creation)
and when we have written a checkpoint (after syncing this log record).
*/
int ma_control_file_write_and_force(const LSN checkpoint_lsn, uint32 logno,
uint objs_to_write);
/* Free resources taken by control file subsystem */
int ma_control_file_end();