mman.h revision 43209
118334Speter/*- 2169689Skan * Copyright (c) 1982, 1986, 1993 3169689Skan * The Regents of the University of California. All rights reserved. 418334Speter * 590075Sobrien * Redistribution and use in source and binary forms, with or without 618334Speter * modification, are permitted provided that the following conditions 790075Sobrien * are met: 890075Sobrien * 1. Redistributions of source code must retain the above copyright 990075Sobrien * notice, this list of conditions and the following disclaimer. 1090075Sobrien * 2. Redistributions in binary form must reproduce the above copyright 1118334Speter * notice, this list of conditions and the following disclaimer in the 1290075Sobrien * documentation and/or other materials provided with the distribution. 1390075Sobrien * 3. All advertising materials mentioning features or use of this software 1490075Sobrien * must display the following acknowledgement: 1590075Sobrien * This product includes software developed by the University of 1618334Speter * California, Berkeley and its contributors. 1718334Speter * 4. Neither the name of the University nor the names of its contributors 1890075Sobrien * may be used to endorse or promote products derived from this software 19169689Skan * without specific prior written permission. 20169689Skan * 2118334Speter * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 2290075Sobrien * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 2390075Sobrien * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 2418334Speter * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 2518334Speter * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 2618334Speter * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2718334Speter * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2818334Speter * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2918334Speter * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 3018334Speter * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 3118334Speter * SUCH DAMAGE. 3218334Speter * 3318334Speter * @(#)mman.h 8.2 (Berkeley) 1/9/95 3418334Speter * $Id: mman.h,v 1.24 1999/01/06 23:05:40 julian Exp $ 3518334Speter */ 3618334Speter 37169689Skan#ifndef _SYS_MMAN_H_ 38169689Skan#define _SYS_MMAN_H_ 39169689Skan 40169689Skan#include <sys/_posix.h> 41169689Skan 4218334Speter/* 43169689Skan * Protections are chosen from these bits, or-ed together 4418334Speter */ 45169689Skan#define PROT_NONE 0x00 /* no permissions */ 4618334Speter#define PROT_READ 0x01 /* pages can be read */ 4718334Speter#define PROT_WRITE 0x02 /* pages can be written */ 4818334Speter#define PROT_EXEC 0x04 /* pages can be executed */ 4918334Speter 5018334Speter/* 5118334Speter * Flags contain sharing type and options. 52169689Skan * Sharing types; choose one. 53169689Skan */ 5418334Speter#define MAP_SHARED 0x0001 /* share changes */ 5518334Speter#define MAP_PRIVATE 0x0002 /* changes are private */ 5618334Speter#define MAP_COPY MAP_PRIVATE /* Obsolete */ 5718334Speter 5818334Speter/* 5918334Speter * Other flags 6018334Speter */ 6118334Speter#define MAP_FIXED 0x0010 /* map addr must be exactly as requested */ 6218334Speter#define MAP_RENAME 0x0020 /* Sun: rename private pages to file */ 6318334Speter#define MAP_NORESERVE 0x0040 /* Sun: don't reserve needed swap area */ 6418334Speter#define MAP_INHERIT 0x0080 /* region is retained after exec */ 6518334Speter#define MAP_NOEXTEND 0x0100 /* for MAP_FILE, don't change file size */ 6618334Speter#define MAP_HASSEMAPHORE 0x0200 /* region may contain semaphores */ 6718334Speter#define MAP_STACK 0x0400 /* region grows down, like a stack */ 6818334Speter 6918334Speter#ifdef _P1003_1B_VISIBLE 7018334Speter/* 7118334Speter * Process memory locking 7218334Speter */ 7318334Speter#define MCL_CURRENT 0x0001 /* Lock only current memory */ 7418334Speter#define MCL_FUTURE 0x0002 /* Lock all future memory as well */ 7518334Speter 7618334Speter#endif /* _P1003_1B_VISIBLE */ 7718334Speter 7818334Speter/* 7918334Speter * Error return from mmap() 8018334Speter */ 8118334Speter#define MAP_FAILED ((void *)-1) 8218334Speter 8318334Speter/* 8418334Speter * msync() flags 8518334Speter */ 8618334Speter#define MS_SYNC 0x0000 /* msync synchronously */ 8718334Speter#define MS_ASYNC 0x0001 /* return immediately */ 8818334Speter#define MS_INVALIDATE 0x0002 /* invalidate all cached data */ 8918334Speter 9018334Speter 9118334Speter/* 9218334Speter * Mapping type 9318334Speter */ 9418334Speter#define MAP_FILE 0x0000 /* map from file (default) */ 9518334Speter#define MAP_ANON 0x1000 /* allocated from memory, swap space */ 9618334Speter 97117395Skan/* 9818334Speter * Advice to madvise 9918334Speter */ 10018334Speter#define MADV_NORMAL 0 /* no further special treatment */ 10118334Speter#define MADV_RANDOM 1 /* expect random page references */ 10218334Speter#define MADV_SEQUENTIAL 2 /* expect sequential page references */ 10318334Speter#define MADV_WILLNEED 3 /* will need these pages */ 10418334Speter#define MADV_DONTNEED 4 /* dont need these pages */ 10518334Speter#define MADV_FREE 5 /* dont need these pages, and junk contents */ 10618334Speter 10718334Speter/* 10818334Speter * Return bits from mincore 10918334Speter */ 11018334Speter#define MINCORE_INCORE 0x1 /* Page is incore */ 11118334Speter#define MINCORE_REFERENCED 0x2 /* Page has been referenced by us */ 11218334Speter#define MINCORE_MODIFIED 0x4 /* Page has been modified by us */ 11318334Speter#define MINCORE_REFERENCED_OTHER 0x8 /* Page has been referenced */ 11418334Speter#define MINCORE_MODIFIED_OTHER 0x10 /* Page has been modified */ 11518334Speter 116169689Skan#ifndef KERNEL 11718334Speter 11818334Speter#include <sys/cdefs.h> 11918334Speter 12018334Speter__BEGIN_DECLS 12118334Speter#ifdef _P1003_1B_VISIBLE 12218334Speterint mlockall __P((int)); 12318334Speterint munlockall __P((void)); 12418334Speterint shm_open __P((const char *, int, mode_t)); 12518334Speterint shm_unlink __P((const char *)); 12618334Speter#endif /* _P1003_1B_VISIBLE */ 127117395Skanint mlock __P((const void *, size_t)); 128117395Skan#ifndef _MMAP_DECLARED 12918334Speter#define _MMAP_DECLARED 130169689Skanvoid * mmap __P((void *, size_t, int, int, int, off_t)); 13118334Speter#endif 13290075Sobrienint mprotect __P((const void *, size_t, int)); 13350397Sobrienint msync __P((void *, size_t, int)); 13450397Sobrienint munlock __P((const void *, size_t)); 13550397Sobrienint munmap __P((void *, size_t)); 13650397Sobrien#ifndef _POSIX_SOURCE 13790075Sobrienint madvise __P((void *, size_t, int)); 13850397Sobrienint mincore __P((const void *, size_t, char *)); 13950397Sobrienint minherit __P((void *, size_t, int)); 14050397Sobrien#endif 14150397Sobrien__END_DECLS 14290075Sobrien 14350397Sobrien#endif /* !KERNEL */ 14450397Sobrien 14550397Sobrien#endif 14650397Sobrien