1/* 2 * Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved. 3 * 4 * @APPLE_LICENSE_HEADER_START@ 5 * 6 * The contents of this file constitute Original Code as defined in and 7 * are subject to the Apple Public Source License Version 1.1 (the 8 * "License"). You may not use this file except in compliance with the 9 * License. Please obtain a copy of the License at 10 * http://www.apple.com/publicsource and read it before using this file. 11 * 12 * This Original Code and all software distributed under the License are 13 * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER 14 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 15 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 16 * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the 17 * License for the specific language governing rights and limitations 18 * under the License. 19 * 20 * @APPLE_LICENSE_HEADER_END@ 21 */ 22/* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */ 23/*- 24 * Copyright (c) 1982, 1986, 1993 25 * The Regents of the University of California. All rights reserved. 26 * 27 * Redistribution and use in source and binary forms, with or without 28 * modification, are permitted provided that the following conditions 29 * are met: 30 * 1. Redistributions of source code must retain the above copyright 31 * notice, this list of conditions and the following disclaimer. 32 * 2. Redistributions in binary form must reproduce the above copyright 33 * notice, this list of conditions and the following disclaimer in the 34 * documentation and/or other materials provided with the distribution. 35 * 3. All advertising materials mentioning features or use of this software 36 * must display the following acknowledgement: 37 * This product includes software developed by the University of 38 * California, Berkeley and its contributors. 39 * 4. Neither the name of the University nor the names of its contributors 40 * may be used to endorse or promote products derived from this software 41 * without specific prior written permission. 42 * 43 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 44 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 45 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 46 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 47 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 48 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 49 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 50 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 51 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 52 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 53 * SUCH DAMAGE. 54 * 55 * @(#)mman.h 8.1 (Berkeley) 6/2/93 56 */ 57 58/* 59 * Currently unsupported: 60 * 61 * [TYM] POSIX_TYPED_MEM_ALLOCATE 62 * [TYM] POSIX_TYPED_MEM_ALLOCATE_CONTIG 63 * [TYM] POSIX_TYPED_MEM_MAP_ALLOCATABLE 64 * [TYM] struct posix_typed_mem_info 65 * [TYM] posix_mem_offset() 66 * [TYM] posix_typed_mem_get_info() 67 * [TYM] posix_typed_mem_open() 68 */ 69 70#ifndef _SYS_MMAN_H_ 71#define _SYS_MMAN_H_ 72 73#include <sys/appleapiopts.h> 74#include <sys/cdefs.h> 75 76#include <sys/_types.h> 77 78/* 79 * [various] The mode_t, off_t, and size_t types shall be defined as 80 * described in <sys/types.h> 81 */ 82#ifndef _MODE_T 83typedef __darwin_mode_t mode_t; 84#define _MODE_T 85#endif 86 87#ifndef _OFF_T 88typedef __darwin_off_t off_t; 89#define _OFF_T 90#endif 91 92#ifndef _SIZE_T 93#define _SIZE_T 94typedef __darwin_size_t size_t; 95#endif 96 97 98/* 99 * Protections are chosen from these bits, or-ed together 100 */ 101#define PROT_NONE 0x00 /* [MC2] no permissions */ 102#define PROT_READ 0x01 /* [MC2] pages can be read */ 103#define PROT_WRITE 0x02 /* [MC2] pages can be written */ 104#define PROT_EXEC 0x04 /* [MC2] pages can be executed */ 105 106/* 107 * Flags contain sharing type and options. 108 * Sharing types; choose one. 109 */ 110#define MAP_SHARED 0x0001 /* [MF|SHM] share changes */ 111#define MAP_PRIVATE 0x0002 /* [MF|SHM] changes are private */ 112#ifndef _POSIX_C_SOURCE 113#define MAP_COPY MAP_PRIVATE /* Obsolete */ 114#endif /* !_POSIX_C_SOURCE */ 115 116/* 117 * Other flags 118 */ 119#define MAP_FIXED 0x0010 /* [MF|SHM] interpret addr exactly */ 120#ifndef _POSIX_C_SOURCE 121#define MAP_RENAME 0x0020 /* Sun: rename private pages to file */ 122#define MAP_NORESERVE 0x0040 /* Sun: don't reserve needed swap area */ 123#define MAP_RESERVED0080 0x0080 /* previously unimplemented MAP_INHERIT */ 124#define MAP_NOEXTEND 0x0100 /* for MAP_FILE, don't change file size */ 125#define MAP_HASSEMAPHORE 0x0200 /* region may contain semaphores */ 126#endif /* !_POSIX_C_SOURCE */ 127 128/* 129 * Process memory locking 130 */ 131#define MCL_CURRENT 0x0001 /* [ML] Lock only current memory */ 132#define MCL_FUTURE 0x0002 /* [ML] Lock all future memory as well */ 133 134/* 135 * Error return from mmap() 136 */ 137#define MAP_FAILED ((void *)-1) /* [MF|SHM] mmap failed */ 138 139/* 140 * msync() flags 141 */ 142#define MS_ASYNC 0x0001 /* [MF|SIO] return immediately */ 143#define MS_INVALIDATE 0x0002 /* [MF|SIO] invalidate all cached data */ 144#define MS_SYNC 0x0010 /* [MF|SIO] msync synchronously */ 145 146#ifndef _POSIX_C_SOURCE 147#define MS_KILLPAGES 0x0004 /* invalidate pages, leave mapped */ 148#define MS_DEACTIVATE 0x0008 /* deactivate pages, leave mapped */ 149 150/* 151 * Mapping type 152 */ 153#define MAP_FILE 0x0000 /* map from file (default) */ 154#define MAP_ANON 0x1000 /* allocated from memory, swap space */ 155#endif /* !_POSIX_C_SOURCE */ 156 157 158/* 159 * Advice to madvise 160 */ 161#define POSIX_MADV_NORMAL 0 /* [MC1] no further special treatment */ 162#define POSIX_MADV_RANDOM 1 /* [MC1] expect random page refs */ 163#define POSIX_MADV_SEQUENTIAL 2 /* [MC1] expect sequential page refs */ 164#define POSIX_MADV_WILLNEED 3 /* [MC1] will need these pages */ 165#define POSIX_MADV_DONTNEED 4 /* [MC1] dont need these pages */ 166 167#ifndef _POSIX_C_SOURCE 168#define MADV_NORMAL POSIX_MADV_NORMAL 169#define MADV_RANDOM POSIX_MADV_RANDOM 170#define MADV_SEQUENTIAL POSIX_MADV_SEQUENTIAL 171#define MADV_WILLNEED POSIX_MADV_WILLNEED 172#define MADV_DONTNEED POSIX_MADV_DONTNEED 173#define MADV_FREE 5 /* pages unneeded, discard contents */ 174 175/* 176 * Return bits from mincore 177 */ 178#define MINCORE_INCORE 0x1 /* Page is incore */ 179#define MINCORE_REFERENCED 0x2 /* Page has been referenced by us */ 180#define MINCORE_MODIFIED 0x4 /* Page has been modified by us */ 181#define MINCORE_REFERENCED_OTHER 0x8 /* Page has been referenced */ 182#define MINCORE_MODIFIED_OTHER 0x10 /* Page has been modified */ 183#endif /* !_POSIX_C_SOURCE */ 184 185 186#ifndef KERNEL 187 188__BEGIN_DECLS 189/* [ML] */ 190int mlockall(int); 191int munlockall(void); 192/* [MR] */ 193int mlock(const void *, size_t); 194#ifndef _MMAP 195#define _MMAP 196/* [MC3]*/ 197void * mmap(void *, size_t, int, int, int, off_t) __DARWIN_ALIAS(mmap); 198#endif 199/* [MPR] */ 200int mprotect(void *, size_t, int) __DARWIN_ALIAS(mprotect); 201/* [MF|SIO] */ 202int msync(void *, size_t, int) __DARWIN_ALIAS(msync); 203/* [MR] */ 204int munlock(const void *, size_t); 205/* [MC3]*/ 206int munmap(void *, size_t) __DARWIN_ALIAS(munmap); 207/* [SHM] */ 208int shm_open(const char *, int, ...); 209int shm_unlink(const char *); 210/* [ADV] */ 211int posix_madvise(void *, size_t, int); 212 213#ifndef _POSIX_C_SOURCE 214int madvise(void *, size_t, int); 215int mincore(const void *, size_t, char *); 216int minherit(void *, size_t, int); 217#endif 218__END_DECLS 219 220#else /* KERNEL */ 221 222void pshm_cache_init(void); /* for bsd_init() */ 223 224/* 225 * XXX routine exported by posix_shm.c, but never used there, only used in 226 * XXX kern_mman.c in the implementation of mmap(). 227 */ 228struct mmap_args; 229struct fileproc; 230int pshm_mmap(struct proc *p, struct mmap_args *uap, user_addr_t *retval, 231 struct fileproc *fp, off_t pageoff); 232/* Really need to overhaul struct fileops to avoid this... */ 233struct pshmnode; 234int pshm_stat(struct pshmnode *pnode, struct stat *sb); 235struct fileproc; 236int pshm_truncate(struct proc *p, struct fileproc *fp, int fd, off_t length, register_t *retval); 237 238#endif /* KERNEL */ 239#endif /* !_SYS_MMAN_H_ */ 240