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1.1 root 1: /*
2: * Copyright (c) 2000 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: #ifndef _SYS_MMAN_H_
59: #define _SYS_MMAN_H_
60:
61: /*
62: * Protections are chosen from these bits, or-ed together
63: */
64: #define PROT_NONE 0x00 /* no permissions */
65: #define PROT_READ 0x01 /* pages can be read */
66: #define PROT_WRITE 0x02 /* pages can be written */
67: #define PROT_EXEC 0x04 /* pages can be executed */
68:
69: /*
70: * Flags contain sharing type and options.
71: * Sharing types; choose one.
72: */
73: #define MAP_SHARED 0x0001 /* share changes */
74: #define MAP_PRIVATE 0x0002 /* changes are private */
75: #define MAP_COPY MAP_PRIVATE /* Obsolete */
76:
77: /*
78: * Other flags
79: */
80: #define MAP_FIXED 0x0010 /* map addr must be exactly as requested */
81: #define MAP_RENAME 0x0020 /* Sun: rename private pages to file */
82: #define MAP_NORESERVE 0x0040 /* Sun: don't reserve needed swap area */
83: #define MAP_INHERIT 0x0080 /* region is retained after exec */
84: #define MAP_NOEXTEND 0x0100 /* for MAP_FILE, don't change file size */
85: #define MAP_HASSEMAPHORE 0x0200 /* region may contain semaphores */
86:
87: #ifdef _P1003_1B_VISIBLE
88: /*
89: * Process memory locking
90: */
91: #define MCL_CURRENT 0x0001 /* Lock only current memory */
92: #define MCL_FUTURE 0x0002 /* Lock all future memory as well */
93:
94: #endif /* _P1003_1B_VISIBLE */
95:
96: /*
97: * Error return from mmap()
98: */
99: #define MAP_FAILED ((void *)-1)
100:
101: /*
102: * msync() flags
103: */
104: #define MS_SYNC 0x0000 /* msync synchronously */
105: #define MS_ASYNC 0x0001 /* return immediately */
106: #define MS_INVALIDATE 0x0002 /* invalidate all cached data */
107:
108: /*
109: * Mapping type
110: */
111: #define MAP_FILE 0x0000 /* map from file (default) */
112: #define MAP_ANON 0x1000 /* allocated from memory, swap space */
113:
114: /*
115: * Advice to madvise
116: */
117: #define MADV_NORMAL 0 /* no further special treatment */
118: #define MADV_RANDOM 1 /* expect random page references */
119: #define MADV_SEQUENTIAL 2 /* expect sequential page references */
120: #define MADV_WILLNEED 3 /* will need these pages */
121: #define MADV_DONTNEED 4 /* dont need these pages */
122: #define MADV_FREE 5 /* dont need these pages, and junk contents */
123:
124: /*
125: * Return bits from mincore
126: */
127: #define MINCORE_INCORE 0x1 /* Page is incore */
128: #define MINCORE_REFERENCED 0x2 /* Page has been referenced by us */
129: #define MINCORE_MODIFIED 0x4 /* Page has been modified by us */
130: #define MINCORE_REFERENCED_OTHER 0x8 /* Page has been referenced */
131: #define MINCORE_MODIFIED_OTHER 0x10 /* Page has been modified */
132:
133: #ifndef KERNEL
134:
135: #include <sys/cdefs.h>
136:
137: __BEGIN_DECLS
138: #ifdef _P1003_1B_VISIBLE
139: int mlockall __P((int));
140: int munlockall __P((void));
141: #endif /* _P1003_1B_VISIBLE */
142: int mlock __P((const void *, size_t));
143: #ifndef _MMAP_DECLARED
144: #define _MMAP_DECLARED
145: void * mmap __P((void *, size_t, int, int, int, off_t));
146: #endif
147: int mprotect __P((const void *, size_t, int));
148: int msync __P((void *, size_t, int));
149: int munlock __P((const void *, size_t));
150: int munmap __P((void *, size_t));
151: int shm_open __P((const char *, int, ...));
152: int shm_unlink __P((const char *));
153: #ifndef _POSIX_SOURCE
154: int madvise __P((void *, size_t, int));
155: int mincore __P((const void *, size_t, char *));
156: int minherit __P((void *, size_t, int));
157: #endif
158: __END_DECLS
159:
160: #endif /* !KERNEL */
161: #endif /* !_SYS_MMAN_H_ */
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