mirror/mariadb
1
0
Fork 0
mirror of https://github.com/MariaDB/server.git synced 2026-05-16 20:07:13 +02:00
Code Issues Projects Releases Packages Wiki Activity

Many files:

Browse source 
Merge InnoDB-3.23.50


innobase/btr/btr0btr.c:
  Merge InnoDB-3.23.50
innobase/btr/btr0cur.c:
  Merge InnoDB-3.23.50
innobase/btr/btr0sea.c:
  Merge InnoDB-3.23.50
innobase/buf/buf0buf.c:
  Merge InnoDB-3.23.50
innobase/buf/buf0flu.c:
  Merge InnoDB-3.23.50
innobase/dict/dict0dict.c:
  Merge InnoDB-3.23.50
innobase/dict/dict0load.c:
  Merge InnoDB-3.23.50
innobase/fil/fil0fil.c:
  Merge InnoDB-3.23.50
innobase/fsp/fsp0fsp.c:
  Merge InnoDB-3.23.50
innobase/include/buf0flu.h:
  Merge InnoDB-3.23.50
innobase/include/dict0dict.h:
  Merge InnoDB-3.23.50
innobase/include/fil0fil.h:
  Merge InnoDB-3.23.50
innobase/include/fsp0fsp.h:
  Merge InnoDB-3.23.50
innobase/include/log0log.h:
  Merge InnoDB-3.23.50
innobase/include/log0recv.h:
  Merge InnoDB-3.23.50
innobase/include/mem0mem.h:
  Merge InnoDB-3.23.50
innobase/include/os0file.h:
  Merge InnoDB-3.23.50
innobase/include/row0mysql.h:
  Merge InnoDB-3.23.50
innobase/include/srv0srv.h:
  Merge InnoDB-3.23.50
innobase/include/srv0start.h:
  Merge InnoDB-3.23.50
innobase/include/trx0sys.h:
  Merge InnoDB-3.23.50
innobase/include/ut0byte.h:
  Merge InnoDB-3.23.50
innobase/include/ut0rnd.h:
  Merge InnoDB-3.23.50
innobase/include/ut0ut.h:
  Merge InnoDB-3.23.50
innobase/log/log0log.c:
  Merge InnoDB-3.23.50
innobase/log/log0recv.c:
  Merge InnoDB-3.23.50
innobase/mem/mem0mem.c:
  Merge InnoDB-3.23.50
innobase/os/os0file.c:
  Merge InnoDB-3.23.50
innobase/rem/rem0cmp.c:
  Merge InnoDB-3.23.50
innobase/row/row0ins.c:
  Merge InnoDB-3.23.50
innobase/row/row0mysql.c:
  Merge InnoDB-3.23.50
innobase/row/row0sel.c:
  Merge InnoDB-3.23.50
innobase/row/row0upd.c:
  Merge InnoDB-3.23.50
innobase/srv/srv0srv.c:
  Merge InnoDB-3.23.50
innobase/srv/srv0start.c:
  Merge InnoDB-3.23.50
innobase/trx/trx0sys.c:
  Merge InnoDB-3.23.50
innobase/ut/ut0mem.c:
  Merge InnoDB-3.23.50
innobase/ut/ut0ut.c:
  Merge InnoDB-3.23.50
sql/ha_innobase.cc:
  Merge InnoDB-3.23.50
sql/ha_innobase.h:
  Merge InnoDB-3.23.50
This commit is contained in:
unknown 2002-03-21 18:03:09 +02:00
commit d3c0752b6a
40 changed files with 2553 additions and 652 deletions
Download patch file Download diff file Expand all files Collapse all files

36
innobase/trx/trx0sys.c
View file

@ -20,11 +20,42 @@ Created 3/26/1996 Heikki Tuuri
#include "srv0srv.h"
#include "trx0purge.h"
#include "log0log.h"
#include "os0file.h"
/* The transaction system */
trx_sys_t* trx_sys = NULL;
trx_doublewrite_t* trx_doublewrite = NULL;
/********************************************************************
Determines if a page number is located inside the doublewrite buffer. */
ibool
trx_doublewrite_page_inside(
/*========================*/
/* out: TRUE if the location is inside
the two blocks of the doublewrite buffer */
ulint page_no) /* in: page number */
{
if (trx_doublewrite == NULL) {
return(FALSE);
}
if (page_no >= trx_doublewrite->block1
&& page_no < trx_doublewrite->block1
+ TRX_SYS_DOUBLEWRITE_BLOCK_SIZE) {
return(TRUE);
}
if (page_no >= trx_doublewrite->block2
&& page_no < trx_doublewrite->block2
+ TRX_SYS_DOUBLEWRITE_BLOCK_SIZE) {
return(TRUE);
}
return(FALSE);
}
/********************************************************************
Creates or initialializes the doublewrite buffer at a database start. */
static
@ -36,6 +67,11 @@ trx_doublewrite_init(
{
trx_doublewrite = mem_alloc(sizeof(trx_doublewrite_t));
/* When we have the doublewrite buffer in use, we do not need to
call os_file_flush (Unix fsync) after every write. */
os_do_not_call_flush_at_each_write = TRUE;
mutex_create(&(trx_doublewrite->mutex));
mutex_set_level(&(trx_doublewrite->mutex), SYNC_DOUBLEWRITE);