1204076Spjd/*-
2204076Spjd * Copyright (c) 2010 The FreeBSD Foundation
3204076Spjd * All rights reserved.
4204076Spjd *
5204076Spjd * This software was developed by Pawel Jakub Dawidek under sponsorship from
6204076Spjd * the FreeBSD Foundation.
7204076Spjd *
8204076Spjd * Redistribution and use in source and binary forms, with or without
9204076Spjd * modification, are permitted provided that the following conditions
10204076Spjd * are met:
11204076Spjd * 1. Redistributions of source code must retain the above copyright
12204076Spjd *    notice, this list of conditions and the following disclaimer.
13204076Spjd * 2. Redistributions in binary form must reproduce the above copyright
14204076Spjd *    notice, this list of conditions and the following disclaimer in the
15204076Spjd *    documentation and/or other materials provided with the distribution.
16204076Spjd *
17204076Spjd * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
18204076Spjd * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19204076Spjd * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20204076Spjd * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
21204076Spjd * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22204076Spjd * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23204076Spjd * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24204076Spjd * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25204076Spjd * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26204076Spjd * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27204076Spjd * SUCH DAMAGE.
28204076Spjd *
29204076Spjd * $FreeBSD$
30204076Spjd */
31204076Spjd
32204076Spjd#ifndef	_RANGELOCK_H_
33204076Spjd#define	_RANGELOCK_H_
34204076Spjd
35204076Spjd#include <stdbool.h>
36204076Spjd#include <unistd.h>
37204076Spjd
38204076Spjdstruct rangelocks;
39204076Spjd
40204076Spjdint rangelock_init(struct rangelocks **rlsp);
41204076Spjdvoid rangelock_free(struct rangelocks *rls);
42204076Spjdint rangelock_add(struct rangelocks *rls, off_t offset, off_t length);
43204076Spjdvoid rangelock_del(struct rangelocks *rls, off_t offset, off_t length);
44204076Spjdbool rangelock_islocked(struct rangelocks *rls, off_t offset, off_t length);
45204076Spjd
46204076Spjd#endif	/* !_RANGELOCK_H_ */
47