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