mman.h revision 9507
1/*- 2 * Copyright (c) 1982, 1986, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * @(#)mman.h 8.1 (Berkeley) 6/2/93 34 * $Id: mman.h,v 1.7 1995/05/14 19:19:07 nate Exp $ 35 */ 36 37#ifndef _SYS_MMAN_H_ 38#define _SYS_MMAN_H_ 39 40/* 41 * Protections are chosen from these bits, or-ed together 42 */ 43#define PROT_READ 0x01 /* pages can be read */ 44#define PROT_WRITE 0x02 /* pages can be written */ 45#define PROT_EXEC 0x04 /* pages can be executed */ 46 47/* 48 * Flags contain sharing type and options. 49 * Sharing types; choose one. 50 */ 51#define MAP_SHARED 0x0001 /* share changes */ 52#define MAP_PRIVATE 0x0002 /* changes are private */ 53#define MAP_COPY MAP_PRIVATE /* Obsolete */ 54 55/* 56 * Other flags 57 */ 58#define MAP_FIXED 0x0010 /* map addr must be exactly as requested */ 59#define MAP_RENAME 0x0020 /* Sun: rename private pages to file */ 60#define MAP_NORESERVE 0x0040 /* Sun: don't reserve needed swap area */ 61#define MAP_INHERIT 0x0080 /* region is retained after exec */ 62#define MAP_NOEXTEND 0x0100 /* for MAP_FILE, don't change file size */ 63#define MAP_HASSEMAPHORE 0x0200 /* region may contain semaphores */ 64 65/* 66 * msync() flags 67 */ 68#define MS_ASYNC 0x0001 /* return immediately */ 69#define MS_INVALIDATE 0x0002 /* invalidate all cached data */ 70 71/* 72 * Mapping type; default is map from file. 73 */ 74#define MAP_FILE 0x0000 /* for backward source compatibility */ 75#define MAP_ANON 0x1000 /* allocated from memory, swap space */ 76 77/* 78 * Advice to madvise 79 */ 80#define MADV_NORMAL 0 /* no further special treatment */ 81#define MADV_RANDOM 1 /* expect random page references */ 82#define MADV_SEQUENTIAL 2 /* expect sequential page references */ 83#define MADV_WILLNEED 3 /* will need these pages */ 84#define MADV_DONTNEED 4 /* dont need these pages */ 85 86#ifndef KERNEL 87 88#include <sys/cdefs.h> 89 90__BEGIN_DECLS 91/* Some of these int's should probably be size_t's */ 92caddr_t mmap __P((caddr_t, size_t, int, int, int, off_t)); 93int madvise __P((caddr_t, int, int)); 94int mprotect __P((caddr_t, size_t, int)); 95int munmap __P((caddr_t, size_t)); 96int msync __P((caddr_t, size_t, int)); 97int mlock __P((caddr_t, size_t)); 98int munlock __P((caddr_t, size_t)); 99__END_DECLS 100 101#endif /* !KERNEL */ 102 103#endif 104