/* * Copyright (c) 2001 Apple Computer, Inc. All rights reserved. * * @APPLE_LICENSE_HEADER_START@ * * The contents of this file constitute Original Code as defined in and * are subject to the Apple Public Source License Version 1.1 (the * "License"). You may not use this file except in compliance with the * License. Please obtain a copy of the License at * http://www.apple.com/publicsource and read it before using this file. * * This Original Code and all software distributed under the License are * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the * License for the specific language governing rights and limitations * under the License. * * @APPLE_LICENSE_HEADER_END@ */ #ifndef _HFS_RANGELIST_H_ #define _HFS_RANGELIST_H_ #include <sys/appleapiopts.h> #ifdef KERNEL #ifdef __APPLE_API_PRIVATE #include <sys/types.h> #include <sys/queue.h> enum rl_overlaptype { RL_NOOVERLAP = 0, /* 0 */ RL_MATCHINGOVERLAP, /* 1 */ RL_OVERLAPCONTAINSRANGE, /* 2 */ RL_OVERLAPISCONTAINED, /* 3 */ RL_OVERLAPSTARTSBEFORE, /* 4 */ RL_OVERLAPENDSAFTER /* 5 */ }; #define RL_INFINITY ((off_t)-1) CIRCLEQ_HEAD(rl_head, rl_entry); struct rl_entry { CIRCLEQ_ENTRY(rl_entry) rl_link; off_t rl_start; off_t rl_end; }; __BEGIN_DECLS void rl_init(struct rl_head *rangelist); void rl_add(off_t start, off_t end, struct rl_head *rangelist); void rl_remove(off_t start, off_t end, struct rl_head *rangelist); enum rl_overlaptype rl_scan(struct rl_head *rangelist, off_t start, off_t end, struct rl_entry **overlap); __END_DECLS #endif /* __APPLE_API_PRIVATE */ #endif /* KERNEL */ #endif /* ! _HFS_RANGELIST_H_ */