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/******************************************************
XtraBackup: hot backup tool for InnoDB
(c) 2009-2012 Percona Inc.
Originally Created 3/3/2009 Yasufumi Kinoshita
Written by Alexey Kopytov, Aleksandr Kuzminsky, Stewart Smith, Vadim Tkachenko,
Yasufumi Kinoshita, Ignacio Nin and Baron Schwartz.
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 Street, Fifth Floor, Boston, MA 02110-1335 USA
*******************************************************/
/* Changed page bitmap interface */
#ifndef XB_CHANGED_PAGE_BITMAP_H
#define XB_CHANGED_PAGE_BITMAP_H
#include <ut0rbt.h>
#include <fil0fil.h>
/* The changed page bitmap structure */
typedef ib_rbt_t xb_page_bitmap;
struct xb_page_bitmap_range_struct;
/* The bitmap range iterator over one space id */
typedef struct xb_page_bitmap_range_struct xb_page_bitmap_range;
/****************************************************************//**
Read the disk bitmap and build the changed page bitmap tree for the
LSN interval incremental_lsn to log_sys.next_checkpoint_lsn.
@return the built bitmap tree */
xb_page_bitmap*
xb_page_bitmap_init(void);
/*=====================*/
/****************************************************************//**
Free the bitmap tree. */
void
xb_page_bitmap_deinit(
/*==================*/
xb_page_bitmap* bitmap); /*!<in/out: bitmap tree */
/****************************************************************//**
Set up a new bitmap range iterator over a given space id changed
pages in a given bitmap.
@return bitmap range iterator */
xb_page_bitmap_range*
xb_page_bitmap_range_init(
/*======================*/
xb_page_bitmap* bitmap, /*!< in: bitmap to iterate over */
ulint space_id); /*!< in: space id */
/****************************************************************//**
Get the next page id that has its bit set or cleared, i.e. equal to
bit_value.
@return page id */
ulint
xb_page_bitmap_range_get_next_bit(
/*==============================*/
xb_page_bitmap_range* bitmap_range, /*!< in/out: bitmap range */
ibool bit_value); /*!< in: bit value */
/****************************************************************//**
Free the bitmap range iterator. */
void
xb_page_bitmap_range_deinit(
/*========================*/
xb_page_bitmap_range* bitmap_range); /*! in/out: bitmap range */
#endif
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