mman.h revision 103304
1114402Sru/*- 2151497Sru * Copyright (c) 1982, 1986, 1993 3114402Sru * The Regents of the University of California. All rights reserved. 4114402Sru * 5114402Sru * Redistribution and use in source and binary forms, with or without 6114402Sru * modification, are permitted provided that the following conditions 7114402Sru * are met: 8114402Sru * 1. Redistributions of source code must retain the above copyright 9114402Sru * notice, this list of conditions and the following disclaimer. 10114402Sru * 2. Redistributions in binary form must reproduce the above copyright 11114402Sru * notice, this list of conditions and the following disclaimer in the 12114402Sru * documentation and/or other materials provided with the distribution. 13114402Sru * 3. All advertising materials mentioning features or use of this software 14114402Sru * must display the following acknowledgement: 15114402Sru * This product includes software developed by the University of 16114402Sru * California, Berkeley and its contributors. 17114402Sru * 4. Neither the name of the University nor the names of its contributors 18114402Sru * may be used to endorse or promote products derived from this software 19114402Sru * without specific prior written permission. 20151497Sru * 21114402Sru * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22114402Sru * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23114402Sru * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24114402Sru * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25114402Sru * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26114402Sru * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27114402Sru * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28151497Sru * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29151497Sru * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30114402Sru * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31114402Sru * SUCH DAMAGE. 32114402Sru * 33114402Sru * @(#)mman.h 8.2 (Berkeley) 1/9/95 34114402Sru * $FreeBSD: head/sys/sys/mman.h 103304 2002-09-13 18:29:15Z mike $ 35114402Sru */ 36114402Sru 37151497Sru#ifndef _SYS_MMAN_H_ 38151497Sru#define _SYS_MMAN_H_ 39114402Sru 40114402Sru#include <sys/cdefs.h> 41114402Sru#include <sys/_types.h> 42114402Sru 43114402Sru#if __BSD_VISIBLE 44114402Sru/* 45114402Sru * Inheritance for minherit() 46114402Sru */ 47114402Sru#define INHERIT_SHARE 0 48114402Sru#define INHERIT_COPY 1 49114402Sru#define INHERIT_NONE 2 50114402Sru#endif 51114402Sru 52114402Sru/* 53114402Sru * Protections are chosen from these bits, or-ed together 54114402Sru */ 55114402Sru#define PROT_NONE 0x00 /* no permissions */ 56151497Sru#define PROT_READ 0x01 /* pages can be read */ 57151497Sru#define PROT_WRITE 0x02 /* pages can be written */ 58151497Sru#define PROT_EXEC 0x04 /* pages can be executed */ 59114402Sru 60114402Sru/* 61114402Sru * Flags contain sharing type and options. 62114402Sru * Sharing types; choose one. 63114402Sru */ 64114402Sru#define MAP_SHARED 0x0001 /* share changes */ 65114402Sru#define MAP_PRIVATE 0x0002 /* changes are private */ 66114402Sru#define MAP_COPY MAP_PRIVATE /* Obsolete */ 67114402Sru 68114402Sru#if __BSD_VISIBLE 69114402Sru/* 70114402Sru * Other flags 71114402Sru */ 72114402Sru#define MAP_FIXED 0x0010 /* map addr must be exactly as requested */ 73114402Sru#define MAP_RENAME 0x0020 /* Sun: rename private pages to file */ 74114402Sru#define MAP_NORESERVE 0x0040 /* Sun: don't reserve needed swap area */ 75114402Sru#define MAP_RESERVED0080 0x0080 /* previously misimplemented MAP_INHERIT */ 76114402Sru#define MAP_RESERVED0100 0x0100 /* previously unimplemented MAP_NOEXTEND */ 77114402Sru#define MAP_HASSEMAPHORE 0x0200 /* region may contain semaphores */ 78114402Sru#define MAP_STACK 0x0400 /* region grows down, like a stack */ 79114402Sru#define MAP_NOSYNC 0x0800 /* page to but do not sync underlying file */ 80114402Sru 81114402Sru/* 82114402Sru * Mapping type 83114402Sru */ 84114402Sru#define MAP_FILE 0x0000 /* map from file (default) */ 85114402Sru#define MAP_ANON 0x1000 /* allocated from memory, swap space */ 86114402Sru 87114402Sru/* 88114402Sru * Extended flags 89114402Sru */ 90114402Sru#define MAP_NOCORE 0x00020000 /* dont include these pages in a coredump */ 91114402Sru#endif /* __BSD_VISIBLE */ 92114402Sru 93114402Sru#if __POSIX_VISIBLE >= 199309 94114402Sru/* 95114402Sru * Process memory locking 96114402Sru */ 97114402Sru#define MCL_CURRENT 0x0001 /* Lock only current memory */ 98114402Sru#define MCL_FUTURE 0x0002 /* Lock all future memory as well */ 99114402Sru#endif 100114402Sru 101114402Sru/* 102114402Sru * Error return from mmap() 103114402Sru */ 104151497Sru#define MAP_FAILED ((void *)-1) 105151497Sru 106151497Sru/* 107151497Sru * msync() flags 108114402Sru */ 109114402Sru#define MS_SYNC 0x0000 /* msync synchronously */ 110114402Sru#define MS_ASYNC 0x0001 /* return immediately */ 111114402Sru#define MS_INVALIDATE 0x0002 /* invalidate all cached data */ 112114402Sru 113114402Sru#if __BSD_VISIBLE 114114402Sru/* 115114402Sru * Advice to madvise 116114402Sru */ 117114402Sru#define MADV_NORMAL 0 /* no further special treatment */ 118114402Sru#define MADV_RANDOM 1 /* expect random page references */ 119114402Sru#define MADV_SEQUENTIAL 2 /* expect sequential page references */ 120114402Sru#define MADV_WILLNEED 3 /* will need these pages */ 121114402Sru#define MADV_DONTNEED 4 /* dont need these pages */ 122114402Sru#define MADV_FREE 5 /* dont need these pages, and junk contents */ 123114402Sru#define MADV_NOSYNC 6 /* try to avoid flushes to physical media */ 124114402Sru#define MADV_AUTOSYNC 7 /* revert to default flushing strategy */ 125114402Sru#define MADV_NOCORE 8 /* do not include these pages in a core file */ 126114402Sru#define MADV_CORE 9 /* revert to including pages in a core file */ 127151497Sru 128151497Sru/* 129151497Sru * Return bits from mincore 130151497Sru */ 131151497Sru#define MINCORE_INCORE 0x1 /* Page is incore */ 132151497Sru#define MINCORE_REFERENCED 0x2 /* Page has been referenced by us */ 133151497Sru#define MINCORE_MODIFIED 0x4 /* Page has been modified by us */ 134114402Sru#define MINCORE_REFERENCED_OTHER 0x8 /* Page has been referenced */ 135114402Sru#define MINCORE_MODIFIED_OTHER 0x10 /* Page has been modified */ 136114402Sru#endif /* __BSD_VISIBLE */ 137114402Sru 138114402Sru/* 139114402Sru * XXX missing POSIX_MADV_* macros, POSIX_TYPED_MEM_* macros, and 140114402Sru * posix_typed_mem_info structure. 141114402Sru */ 142114402Sru 143114402Sru#ifndef _MODE_T_DECLARED 144114402Srutypedef __mode_t mode_t; 145114402Sru#define _MODE_T_DECLARED 146114402Sru#endif 147114402Sru 148114402Sru#ifndef _OFF_T_DECLARED 149114402Srutypedef __off_t off_t; 150114402Sru#define _OFF_T_DECLARED 151114402Sru#endif 152114402Sru 153114402Sru#ifndef _SIZE_T_DECLARED 154114402Srutypedef __size_t size_t; 155114402Sru#define _SIZE_T_DECLARED 156114402Sru#endif 157114402Sru 158114402Sru#ifndef _KERNEL 159114402Sru 160114402Sru__BEGIN_DECLS 161114402Sru/* 162114402Sru * XXX not yet implemented: mlockall(), munlockall(), posix_madvise(), 163114402Sru * posix_mem_offset(), posix_typed_mem_get_info(), posix_typed_mem_open(). 164114402Sru */ 165114402Sru#if __BSD_VISIBLE 166114402Sruint madvise(void *, size_t, int); 167114402Sruint mincore(const void *, size_t, char *); 168114402Sruint minherit(void *, size_t, int); 169114402Sru#endif 170114402Sruint mlock(const void *, size_t); 171114402Sru#ifndef _MMAP_DECLARED 172114402Sru#define _MMAP_DECLARED 173114402Sruvoid * mmap(void *, size_t, int, int, int, off_t); 174114402Sru#endif 175114402Sruint mprotect(const void *, size_t, int); 176114402Sruint msync(void *, size_t, int); 177114402Sruint munlock(const void *, size_t); 178114402Sruint munmap(void *, size_t); 179114402Sru#if __POSIX_VISIBLE >= 199309 180114402Sruint shm_open(const char *, int, mode_t); 181114402Sruint shm_unlink(const char *); 182114402Sru#endif 183114402Sru__END_DECLS 184114402Sru 185114402Sru#endif /* !_KERNEL */ 186114402Sru 187114402Sru#endif /* !_SYS_MMAN_H_ */ 188114402Sru