mman.h revision 1822
160786Sps/*- 2221715Sdelphij * Copyright (c) 1982, 1986, 1993 360786Sps * The Regents of the University of California. All rights reserved. 460786Sps * 560786Sps * Redistribution and use in source and binary forms, with or without 660786Sps * modification, are permitted provided that the following conditions 760786Sps * are met: 860786Sps * 1. Redistributions of source code must retain the above copyright 960786Sps * notice, this list of conditions and the following disclaimer. 1060786Sps * 2. Redistributions in binary form must reproduce the above copyright 1160786Sps * notice, this list of conditions and the following disclaimer in the 1260786Sps * documentation and/or other materials provided with the distribution. 1360786Sps * 3. All advertising materials mentioning features or use of this software 1460786Sps * must display the following acknowledgement: 1560786Sps * This product includes software developed by the University of 1660786Sps * California, Berkeley and its contributors. 1760786Sps * 4. Neither the name of the University nor the names of its contributors 1860786Sps * may be used to endorse or promote products derived from this software 1960786Sps * without specific prior written permission. 2060786Sps * 2160786Sps * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 2260786Sps * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 2360786Sps * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24128345Stjr * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 2560786Sps * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 2660786Sps * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2760786Sps * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2860786Sps * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2960786Sps * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 3060786Sps * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31170256Sdelphij * SUCH DAMAGE. 32170256Sdelphij * 3360786Sps * @(#)mman.h 8.1 (Berkeley) 6/2/93 3460786Sps * $Id: mman.h,v 1.2 1994/08/02 07:53:14 davidg Exp $ 35221715Sdelphij */ 36221715Sdelphij 37221715Sdelphij/* 38221715Sdelphij * Protections are chosen from these bits, or-ed together 39221715Sdelphij */ 40221715Sdelphij#define PROT_READ 0x01 /* pages can be read */ 41221715Sdelphij#define PROT_WRITE 0x02 /* pages can be written */ 42221715Sdelphij#define PROT_EXEC 0x04 /* pages can be executed */ 43221715Sdelphij 44221715Sdelphij/* 45221715Sdelphij * Flags contain sharing type and options. 46221715Sdelphij * Sharing types; choose one. 47221715Sdelphij */ 48221715Sdelphij#define MAP_SHARED 0x0001 /* share changes */ 49221715Sdelphij#define MAP_PRIVATE 0x0002 /* changes are private */ 50221715Sdelphij#define MAP_COPY 0x0004 /* "copy" region at mmap time */ 51221715Sdelphij 52221715Sdelphij/* 53221715Sdelphij * Other flags 54221715Sdelphij */ 55221715Sdelphij#define MAP_FIXED 0x0010 /* map addr must be exactly as requested */ 56221715Sdelphij#define MAP_RENAME 0x0020 /* Sun: rename private pages to file */ 57221715Sdelphij#define MAP_NORESERVE 0x0040 /* Sun: don't reserve needed swap area */ 58221715Sdelphij#define MAP_INHERIT 0x0080 /* region is retained after exec */ 59221715Sdelphij#define MAP_NOEXTEND 0x0100 /* for MAP_FILE, don't change file size */ 60221715Sdelphij#define MAP_HASSEMAPHORE 0x0200 /* region may contain semaphores */ 61221715Sdelphij 62221715Sdelphij/* 63221715Sdelphij * Mapping type; default is map from file. 6460786Sps */ 6560786Sps#define MAP_FILE 0x0000 /* for backward source compatibility */ 6660786Sps#define MAP_ANON 0x1000 /* allocated from memory, swap space */ 6760786Sps 6860786Sps/* 6960786Sps * Advice to madvise 7060786Sps */ 7160786Sps#define MADV_NORMAL 0 /* no further special treatment */ 72128345Stjr#define MADV_RANDOM 1 /* expect random page references */ 7360786Sps#define MADV_SEQUENTIAL 2 /* expect sequential page references */ 7460786Sps#define MADV_WILLNEED 3 /* will need these pages */ 7560786Sps#define MADV_DONTNEED 4 /* dont need these pages */ 7660786Sps 7760786Sps#ifndef KERNEL 7860786Sps 7960786Sps#include <sys/cdefs.h> 8060786Sps 8160786Sps__BEGIN_DECLS 8260786Sps/* Some of these int's should probably be size_t's */ 8360786Spscaddr_t mmap __P((caddr_t, size_t, int, int, int, off_t)); 8460786Spsint mprotect __P((caddr_t, size_t, int)); 8560786Spsint munmap __P((caddr_t, size_t)); 8660786Spsint msync __P((caddr_t, size_t)); 8760786Spsint mlock __P((caddr_t, size_t)); 8860786Spsint munlock __P((caddr_t, size_t)); 8960786Sps__END_DECLS 9060786Sps 9160786Sps#endif /* !KERNEL */ 9260786Sps