mirror of
https://github.com/MariaDB/server.git
synced 2025-01-23 07:14:17 +01:00
98af6f74d5
* Remove old Innobase copyright lines from C source files * Add a reference to the GPLv2 license as recommended by the lawyers at Oracle Legal [Step 8/28]
44 lines
1.6 KiB
Text
44 lines
1.6 KiB
Text
/*****************************************************************************
|
|
|
|
Copyright (c) 1995, 2009, Innobase Oy. All Rights Reserved.
|
|
|
|
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
|
|
|
|
*****************************************************************************/
|
|
|
|
/******************************************************
|
|
File space management
|
|
|
|
Created 12/18/1995 Heikki Tuuri
|
|
*******************************************************/
|
|
|
|
/***************************************************************************
|
|
Checks if a page address is an extent descriptor page address. */
|
|
UNIV_INLINE
|
|
ibool
|
|
fsp_descr_page(
|
|
/*===========*/
|
|
/* out: TRUE if a descriptor page */
|
|
ulint zip_size,/* in: compressed page size in bytes;
|
|
0 for uncompressed pages */
|
|
ulint page_no)/* in: page number */
|
|
{
|
|
ut_ad(ut_is_2pow(zip_size));
|
|
|
|
if (!zip_size) {
|
|
return(UNIV_UNLIKELY((page_no & (UNIV_PAGE_SIZE - 1))
|
|
== FSP_XDES_OFFSET));
|
|
}
|
|
|
|
return(UNIV_UNLIKELY((page_no & (zip_size - 1)) == FSP_XDES_OFFSET));
|
|
}
|