diff options
Diffstat (limited to 'storage/myisam/mi_changed.c')
-rw-r--r-- | storage/myisam/mi_changed.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/storage/myisam/mi_changed.c b/storage/myisam/mi_changed.c new file mode 100644 index 00000000..1eb2b517 --- /dev/null +++ b/storage/myisam/mi_changed.c @@ -0,0 +1,34 @@ +/* Copyright (c) 2000, 2001, 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 02110-1335 USA */ + +/* Check if somebody has changed table since last check. */ + +#include "myisamdef.h" + + /* Return 0 if table isn't changed */ + +int mi_is_changed(MI_INFO *info) +{ + int result; + DBUG_ENTER("mi_is_changed"); + if (fast_mi_readinfo(info)) + DBUG_RETURN(-1); + (void) _mi_writeinfo(info,0); + result=(int) info->data_changed; + info->data_changed=0; + DBUG_PRINT("exit",("result: %d",result)); + DBUG_RETURN(result); +} |