mman.h revision 22975
1149092Sjoel/*- 2149092Sjoel * Copyright (c) 1982, 1986, 1993 3149092Sjoel * The Regents of the University of California. All rights reserved. 4149092Sjoel * 5149092Sjoel * Redistribution and use in source and binary forms, with or without 6149092Sjoel * modification, are permitted provided that the following conditions 7149092Sjoel * are met: 8149092Sjoel * 1. Redistributions of source code must retain the above copyright 9149092Sjoel * notice, this list of conditions and the following disclaimer. 10149092Sjoel * 2. Redistributions in binary form must reproduce the above copyright 11149092Sjoel * notice, this list of conditions and the following disclaimer in the 12149092Sjoel * documentation and/or other materials provided with the distribution. 13149092Sjoel * 3. All advertising materials mentioning features or use of this software 14149092Sjoel * must display the following acknowledgement: 15149092Sjoel * This product includes software developed by the University of 16149092Sjoel * California, Berkeley and its contributors. 17149092Sjoel * 4. Neither the name of the University nor the names of its contributors 18149092Sjoel * may be used to endorse or promote products derived from this software 19149092Sjoel * without specific prior written permission. 20149092Sjoel * 21149092Sjoel * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22149092Sjoel * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23149092Sjoel * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24149092Sjoel * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25149092Sjoel * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26149092Sjoel * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27152984Sjoel * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28149092Sjoel * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29149092Sjoel * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30149092Sjoel * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31149092Sjoel * SUCH DAMAGE. 32149092Sjoel * 33149092Sjoel * @(#)mman.h 8.2 (Berkeley) 1/9/95 34152984Sjoel * $Id$ 35152984Sjoel */ 36152984Sjoel 37149092Sjoel#ifndef _SYS_MMAN_H_ 38149092Sjoel#define _SYS_MMAN_H_ 39152984Sjoel 40152984Sjoel/* 41152984Sjoel * Protections are chosen from these bits, or-ed together 42152984Sjoel */ 43152984Sjoel#define PROT_NONE 0x00 /* no permissions */ 44152984Sjoel#define PROT_READ 0x01 /* pages can be read */ 45152984Sjoel#define PROT_WRITE 0x02 /* pages can be written */ 46152984Sjoel#define PROT_EXEC 0x04 /* pages can be executed */ 47149092Sjoel 48149092Sjoel/* 49149092Sjoel * Flags contain sharing type and options. 50149092Sjoel * Sharing types; choose one. 51149092Sjoel */ 52149092Sjoel#define MAP_SHARED 0x0001 /* share changes */ 53149092Sjoel#define MAP_PRIVATE 0x0002 /* changes are private */ 54149092Sjoel#define MAP_COPY MAP_PRIVATE /* Obsolete */ 55149092Sjoel 56149092Sjoel/* 57149092Sjoel * Other flags 58149092Sjoel */ 59149092Sjoel#define MAP_FIXED 0x0010 /* map addr must be exactly as requested */ 60149092Sjoel#define MAP_RENAME 0x0020 /* Sun: rename private pages to file */ 61149092Sjoel#define MAP_NORESERVE 0x0040 /* Sun: don't reserve needed swap area */ 62149092Sjoel#define MAP_INHERIT 0x0080 /* region is retained after exec */ 63149092Sjoel#define MAP_NOEXTEND 0x0100 /* for MAP_FILE, don't change file size */ 64149092Sjoel#define MAP_HASSEMAPHORE 0x0200 /* region may contain semaphores */ 65149092Sjoel 66149092Sjoel/* 67149092Sjoel * Error return from mmap() 68149092Sjoel */ 69149092Sjoel#define MAP_FAILED ((caddr_t)-1) 70149092Sjoel 71149092Sjoel/* 72149092Sjoel * msync() flags 73149092Sjoel */ 74149092Sjoel#define MS_ASYNC 0x0001 /* return immediately */ 75152890Sjoel#define MS_INVALIDATE 0x0002 /* invalidate all cached data */ 76152890Sjoel 77152890Sjoel/* 78 * Mapping type 79 */ 80#define MAP_FILE 0x0000 /* map from file (default) */ 81#define MAP_ANON 0x1000 /* allocated from memory, swap space */ 82 83/* 84 * Advice to madvise 85 */ 86#define MADV_NORMAL 0 /* no further special treatment */ 87#define MADV_RANDOM 1 /* expect random page references */ 88#define MADV_SEQUENTIAL 2 /* expect sequential page references */ 89#define MADV_WILLNEED 3 /* will need these pages */ 90#define MADV_DONTNEED 4 /* dont need these pages */ 91#define MADV_FREE 5 /* dont need these pages, and junk contents */ 92 93/* 94 * Return bits from mincore 95 */ 96#define MINCORE_INCORE 0x1 /* Page is incore */ 97#define MINCORE_REFERENCED 0x2 /* Page has been referenced by us */ 98#define MINCORE_MODIFIED 0x4 /* Page has been modified by us */ 99#define MINCORE_REFERENCED_OTHER 0x8 /* Page has been referenced */ 100#define MINCORE_MODIFIED_OTHER 0x10 /* Page has been modified */ 101 102#ifndef KERNEL 103 104#include <sys/cdefs.h> 105 106__BEGIN_DECLS 107caddr_t mmap __P((caddr_t, size_t, int, int, int, off_t)); 108int mprotect __P((caddr_t, size_t, int)); 109int munmap __P((caddr_t, size_t)); 110int msync __P((caddr_t, size_t, int)); 111int mlock __P((caddr_t, size_t)); 112int munlock __P((caddr_t, size_t)); 113int madvise __P((caddr_t, size_t, int)); 114int mincore __P((caddr_t, size_t, char *)); 115int minherit __P((caddr_t, size_t, int)); 116__END_DECLS 117 118#endif /* !KERNEL */ 119 120#endif 121