mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-22 11:17:19 +00:00
70 lines
2.8 KiB
C
70 lines
2.8 KiB
C
|
/*-
|
||
|
|
* Copyright (c) 2009-2010 The FreeBSD Foundation
|
||
|
|
* All rights reserved.
|
||
|
|
*
|
||
|
|
* This software was developed by Pawel Jakub Dawidek under sponsorship from
|
||
|
|
* the FreeBSD Foundation.
|
||
|
|
*
|
||
|
|
* Redistribution and use in source and binary forms, with or without
|
||
|
|
* modification, are permitted provided that the following conditions
|
||
|
|
* are met:
|
||
|
|
* 1. Redistributions of source code must retain the above copyright
|
||
|
|
* notice, this list of conditions and the following disclaimer.
|
||
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
||
|
|
* notice, this list of conditions and the following disclaimer in the
|
||
|
|
* documentation and/or other materials provided with the distribution.
|
||
|
|
*
|
||
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
|
||
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
|
||
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||
|
|
* SUCH DAMAGE.
|
||
|
|
*
|
||
|
|
* $FreeBSD$
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef _ACTIVEMAP_H_
|
||
|
|
#define _ACTIVEMAP_H_
|
||
|
|
|
||
|
|
#include <stdbool.h>
|
||
|
|
#include <stdint.h>
|
||
|
|
|
||
|
|
struct activemap;
|
||
|
|
|
||
|
|
int activemap_init(struct activemap **ampp, uint64_t mediasize,
|
||
|
|
uint32_t extentsize, uint32_t sectorsize, uint32_t keepdirty);
|
||
|
|
void activemap_free(struct activemap *amp);
|
||
|
|
|
||
|
|
bool activemap_write_start(struct activemap *amp, off_t offset, off_t length);
|
||
|
|
bool activemap_write_complete(struct activemap *amp, off_t offset,
|
||
|
|
off_t length);
|
||
|
|
bool activemap_extent_complete(struct activemap *amp, int extent);
|
||
|
|
uint64_t activemap_ndirty(const struct activemap *amp);
|
||
|
|
|
||
|
|
bool activemap_differ(const struct activemap *amp);
|
||
|
|
size_t activemap_size(const struct activemap *amp);
|
||
|
|
size_t activemap_ondisk_size(const struct activemap *amp);
|
||
|
|
void activemap_copyin(struct activemap *amp, const unsigned char *buf,
|
||
|
|
size_t size);
|
||
|
|
void activemap_merge(struct activemap *amp, const unsigned char *buf,
|
||
|
|
size_t size);
|
||
|
|
const unsigned char *activemap_bitmap(struct activemap *amp, size_t *sizep);
|
||
|
|
|
||
|
|
size_t activemap_calc_ondisk_size(uint64_t mediasize, uint32_t extentsize,
|
||
|
|
uint32_t sectorsize);
|
||
|
|
|
||
|
|
void activemap_sync_rewind(struct activemap *amp);
|
||
|
|
off_t activemap_sync_offset(struct activemap *amp, off_t *lengthp,
|
||
|
|
int *syncextp);
|
||
|
|
bool activemap_need_sync(struct activemap *amp, off_t offset, off_t length);
|
||
|
|
|
||
|
|
void activemap_dump(const struct activemap *amp);
|
||
|
|
|
||
|
|
#endif /* !_ACTIVEMAP_H_ */
|