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85 lines
2.8 KiB
C
85 lines
2.8 KiB
C
/******************************************************
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XtraBackup: hot backup tool for InnoDB
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(c) 2009-2012 Percona Inc.
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Originally Created 3/3/2009 Yasufumi Kinoshita
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Written by Alexey Kopytov, Aleksandr Kuzminsky, Stewart Smith, Vadim Tkachenko,
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Yasufumi Kinoshita, Ignacio Nin and Baron Schwartz.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; version 2 of the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*******************************************************/
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/* Changed page bitmap interface */
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#ifndef XB_CHANGED_PAGE_BITMAP_H
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#define XB_CHANGED_PAGE_BITMAP_H
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#include <ut0rbt.h>
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#include <fil0fil.h>
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/* The changed page bitmap structure */
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typedef ib_rbt_t xb_page_bitmap;
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struct xb_page_bitmap_range_struct;
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/* The bitmap range iterator over one space id */
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typedef struct xb_page_bitmap_range_struct xb_page_bitmap_range;
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/****************************************************************//**
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Read the disk bitmap and build the changed page bitmap tree for the
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LSN interval incremental_lsn to checkpoint_lsn_start.
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@return the built bitmap tree */
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xb_page_bitmap*
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xb_page_bitmap_init(void);
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/*=====================*/
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/****************************************************************//**
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Free the bitmap tree. */
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void
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xb_page_bitmap_deinit(
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/*==================*/
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xb_page_bitmap* bitmap); /*!<in/out: bitmap tree */
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/****************************************************************//**
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Set up a new bitmap range iterator over a given space id changed
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pages in a given bitmap.
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@return bitmap range iterator */
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xb_page_bitmap_range*
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xb_page_bitmap_range_init(
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/*======================*/
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xb_page_bitmap* bitmap, /*!< in: bitmap to iterate over */
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ulint space_id); /*!< in: space id */
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/****************************************************************//**
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Get the next page id that has its bit set or cleared, i.e. equal to
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bit_value.
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@return page id */
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ulint
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xb_page_bitmap_range_get_next_bit(
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/*==============================*/
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xb_page_bitmap_range* bitmap_range, /*!< in/out: bitmap range */
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ibool bit_value); /*!< in: bit value */
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/****************************************************************//**
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Free the bitmap range iterator. */
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void
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xb_page_bitmap_range_deinit(
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/*========================*/
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xb_page_bitmap_range* bitmap_range); /*! in/out: bitmap range */
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#endif
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