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Annotation of XNU/bsd/sys/mman.h, revision 1.1

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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