mirror of
https://github.com/MariaDB/server.git
synced 2025-01-16 12:02:42 +01:00
119 lines
4.2 KiB
C
119 lines
4.2 KiB
C
/* Copyright (c) 2000, 2003, 2005, 2006 MySQL AB, 2009 Sun Microsystems, Inc.
|
|
Use is subject to license terms.
|
|
|
|
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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
|
|
|
|
#include "fulltext.h"
|
|
|
|
/* if flag == HA_PANIC_CLOSE then all misam files are closed */
|
|
/* if flag == HA_PANIC_WRITE then all misam files are unlocked and
|
|
all changed data in single user misam is written to file */
|
|
/* if flag == HA_PANIC_READ then all misam files that was locked when
|
|
mi_panic(HA_PANIC_WRITE) was done is locked. A mi_readinfo() is
|
|
done for all single user files to get changes in database */
|
|
|
|
|
|
int mi_panic(enum ha_panic_function flag)
|
|
{
|
|
int error=0;
|
|
LIST *list_element,*next_open;
|
|
MI_INFO *info;
|
|
DBUG_ENTER("mi_panic");
|
|
|
|
mysql_mutex_lock(&THR_LOCK_myisam);
|
|
for (list_element=myisam_open_list ; list_element ; list_element=next_open)
|
|
{
|
|
next_open=list_element->next; /* Save if close */
|
|
info=(MI_INFO*) list_element->data;
|
|
switch (flag) {
|
|
case HA_PANIC_CLOSE:
|
|
mysql_mutex_unlock(&THR_LOCK_myisam); /* Not exactly right... */
|
|
if (mi_close(info))
|
|
error=my_errno;
|
|
mysql_mutex_lock(&THR_LOCK_myisam);
|
|
break;
|
|
case HA_PANIC_WRITE: /* Do this to free databases */
|
|
#ifdef CANT_OPEN_FILES_TWICE
|
|
if (info->s->options & HA_OPTION_READ_ONLY_DATA)
|
|
break;
|
|
#endif
|
|
if (flush_key_blocks(info->s->key_cache, info->s->kfile,
|
|
&info->s->dirty_part_map, FLUSH_RELEASE))
|
|
error=my_errno;
|
|
if (info->opt_flag & WRITE_CACHE_USED)
|
|
if (flush_io_cache(&info->rec_cache))
|
|
error=my_errno;
|
|
if (info->opt_flag & READ_CACHE_USED)
|
|
{
|
|
if (flush_io_cache(&info->rec_cache))
|
|
error=my_errno;
|
|
reinit_io_cache(&info->rec_cache,READ_CACHE,0,
|
|
(pbool) (info->lock_type != F_UNLCK),1);
|
|
}
|
|
if (info->lock_type != F_UNLCK && ! info->was_locked)
|
|
{
|
|
info->was_locked=info->lock_type;
|
|
if (mi_lock_database(info,F_UNLCK))
|
|
error=my_errno;
|
|
}
|
|
#ifdef CANT_OPEN_FILES_TWICE
|
|
if (info->s->kfile >= 0 && mysql_file_close(info->s->kfile, MYF(0)))
|
|
error = my_errno;
|
|
if (info->dfile >= 0 && mysql_file_close(info->dfile, MYF(0)))
|
|
error = my_errno;
|
|
info->s->kfile=info->dfile= -1; /* Files aren't open anymore */
|
|
#endif
|
|
break;
|
|
case HA_PANIC_READ: /* Restore to before WRITE */
|
|
#ifdef CANT_OPEN_FILES_TWICE
|
|
{ /* Open closed files */
|
|
char name_buff[FN_REFLEN];
|
|
if (info->s->kfile < 0)
|
|
if ((info->s->kfile= mysql_file_open(mi_key_file_kfile,
|
|
fn_format(name_buff,
|
|
info->filename, "",
|
|
N_NAME_IEXT, 4),
|
|
info->mode, MYF(MY_WME))) < 0)
|
|
error = my_errno;
|
|
if (info->dfile < 0)
|
|
{
|
|
if ((info->dfile= mysql_file_open(mi_key_file_dfile,
|
|
fn_format(name_buff,
|
|
info->filename, "",
|
|
N_NAME_DEXT, 4),
|
|
info->mode, MYF(MY_WME))) < 0)
|
|
error = my_errno;
|
|
info->rec_cache.file=info->dfile;
|
|
}
|
|
}
|
|
#endif
|
|
if (info->was_locked)
|
|
{
|
|
if (mi_lock_database(info, info->was_locked))
|
|
error=my_errno;
|
|
info->was_locked=0;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
if (flag == HA_PANIC_CLOSE)
|
|
{
|
|
(void) mi_log(0); /* Close log if neaded */
|
|
ft_free_stopwords();
|
|
}
|
|
mysql_mutex_unlock(&THR_LOCK_myisam);
|
|
if (!error)
|
|
DBUG_RETURN(0);
|
|
DBUG_RETURN(my_errno=error);
|
|
} /* mi_panic */
|