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WL#3071 Maria checkpoint:

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changing pseudocode to use the structures of the Maria pagecache
    ("pagecache->changed_blocks" etc) and other Maria structures
    inherited from MyISAM (THR_LOCK_maria etc).


mysys/mf_pagecache.c:
  comment
storage/maria/ma_checkpoint.c:
  changing pseudocode to use the structures of the Maria pagecache
  ("pagecache->changed_blocks" etc) and other Maria structures
  inherited from MyISAM (THR_LOCK_maria etc).
storage/maria/ma_checkpoint.h:
  copyright
storage/maria/ma_control_file.c:
  copyright
storage/maria/ma_control_file.h:
  copyright
storage/maria/ma_least_recently_dirtied.c:
  copyright
storage/maria/ma_least_recently_dirtied.h:
  copyright
storage/maria/ma_recovery.c:
  copyright
storage/maria/ma_recovery.h:
  copyright
storage/maria/unittest/Makefile.am:
  copyright
This commit is contained in:
unknown 2006-09-14 19:06:51 +02:00
commit cdf831cf94
10 changed files with 225 additions and 22 deletions
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21
storage/maria/ma_control_file.c
View file

@ -1,3 +1,19 @@
/* 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; either version 2 of the License, or
(at your option) any later version.
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.
@ -137,7 +153,10 @@ CONTROL_FILE_ERROR ma_control_file_create_or_open()
We could have a tool which can rebuild the control file, by reading the
directory of logs, finding the newest log, reading it to find last
checkpoint... Slow but can save your db.
checkpoint... Slow but can save your db. For this to be possible, we
must always write to the control file right after writing the checkpoint
log record, and do nothing in between (i.e. the checkpoint must be
usable as soon as it has been written to the log).
*/
LSN imposs_lsn= CONTROL_FILE_IMPOSSIBLE_LSN;