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b688fc87 WJ |
1 | /*- |
2 | * Copyright (c) 1982, 1986 The Regents of the University of California. | |
3 | * All rights reserved. | |
4 | * | |
5 | * Redistribution and use in source and binary forms, with or without | |
6 | * modification, are permitted provided that the following conditions | |
7 | * are met: | |
8 | * 1. Redistributions of source code must retain the above copyright | |
9 | * notice, this list of conditions and the following disclaimer. | |
10 | * 2. Redistributions in binary form must reproduce the above copyright | |
11 | * notice, this list of conditions and the following disclaimer in the | |
12 | * documentation and/or other materials provided with the distribution. | |
13 | * 3. All advertising materials mentioning features or use of this software | |
14 | * must display the following acknowledgement: | |
15 | * This product includes software developed by the University of | |
16 | * California, Berkeley and its contributors. | |
17 | * 4. Neither the name of the University nor the names of its contributors | |
18 | * may be used to endorse or promote products derived from this software | |
19 | * without specific prior written permission. | |
20 | * | |
21 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | |
22 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
23 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
24 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
25 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
26 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
27 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
28 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
29 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
30 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
31 | * SUCH DAMAGE. | |
32 | * | |
33 | * @(#)mman.h 7.5 (Berkeley) 6/27/91 | |
34 | */ | |
35 | ||
36 | /* | |
37 | * Protections are chosen from these bits, or-ed together | |
38 | */ | |
39 | #define PROT_READ 0x04 /* pages can be read */ | |
40 | #define PROT_WRITE 0x02 /* pages can be written */ | |
41 | #define PROT_EXEC 0x01 /* pages can be executed */ | |
42 | ||
43 | /* | |
44 | * Flags contain mapping type, sharing type and options. | |
45 | * Mapping type; choose one | |
46 | */ | |
47 | #define MAP_FILE 0x0001 /* mapped from a file or device */ | |
48 | #define MAP_ANON 0x0002 /* allocated from memory, swap space */ | |
49 | #define MAP_TYPE 0x000f /* mask for type field */ | |
50 | ||
51 | /* | |
52 | * Sharing types; choose one | |
53 | */ | |
54 | #define MAP_COPY 0x0020 /* "copy" region at mmap time */ | |
55 | #define MAP_SHARED 0x0010 /* share changes */ | |
56 | #define MAP_PRIVATE 0x0000 /* changes are private */ | |
57 | ||
58 | /* | |
59 | * Other flags | |
60 | */ | |
61 | #define MAP_FIXED 0x0100 /* map addr must be exactly as requested */ | |
62 | #define MAP_NOEXTEND 0x0200 /* for MAP_FILE, don't change file size */ | |
63 | #define MAP_HASSEMPHORE 0x0400 /* region may contain semaphores */ | |
64 | #define MAP_INHERIT 0x0800 /* region is retained after exec */ | |
65 | ||
66 | /* | |
67 | * Advice to madvise | |
68 | */ | |
69 | #define MADV_NORMAL 0 /* no further special treatment */ | |
70 | #define MADV_RANDOM 1 /* expect random page references */ | |
71 | #define MADV_SEQUENTIAL 2 /* expect sequential page references */ | |
72 | #define MADV_WILLNEED 3 /* will need these pages */ | |
73 | #define MADV_DONTNEED 4 /* dont need these pages */ | |
74 | ||
75 | #ifndef KERNEL | |
76 | ||
77 | #include <sys/cdefs.h> | |
78 | ||
79 | __BEGIN_DECLS | |
80 | /* Some of these int's should probably be size_t's */ | |
81 | caddr_t mmap __P((caddr_t, size_t, int, int, int, off_t)); | |
82 | int mprotect __P((caddr_t, int, int)); | |
83 | int munmap __P((caddr_t, int)); | |
84 | int msync __P((caddr_t, int)); | |
85 | __END_DECLS | |
86 | ||
87 | #endif /* !KERNEL */ |