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

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
        !             3:  *
        !             4:  * @APPLE_LICENSE_HEADER_START@
        !             5:  * 
        !             6:  * Portions Copyright (c) 1999 Apple Computer, Inc.  All Rights
        !             7:  * Reserved.  This file contains Original Code and/or Modifications of
        !             8:  * Original Code as defined in and that are subject to the Apple Public
        !             9:  * Source License Version 1.1 (the "License").  You may not use this file
        !            10:  * except in compliance with the License.  Please obtain a copy of the
        !            11:  * License at http://www.apple.com/publicsource and read it before using
        !            12:  * this file.
        !            13:  * 
        !            14:  * The Original Code and all software distributed under the License are
        !            15:  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
        !            16:  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
        !            17:  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
        !            18:  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
        !            19:  * License for the specific language governing rights and limitations
        !            20:  * under the License.
        !            21:  * 
        !            22:  * @APPLE_LICENSE_HEADER_END@
        !            23:  */
        !            24: 
        !            25: /* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
        !            26: /*-
        !            27:  * Copyright (c) 1982, 1986, 1993
        !            28:  *     The Regents of the University of California.  All rights reserved.
        !            29:  *
        !            30:  * Redistribution and use in source and binary forms, with or without
        !            31:  * modification, are permitted provided that the following conditions
        !            32:  * are met:
        !            33:  * 1. Redistributions of source code must retain the above copyright
        !            34:  *    notice, this list of conditions and the following disclaimer.
        !            35:  * 2. Redistributions in binary form must reproduce the above copyright
        !            36:  *    notice, this list of conditions and the following disclaimer in the
        !            37:  *    documentation and/or other materials provided with the distribution.
        !            38:  * 3. All advertising materials mentioning features or use of this software
        !            39:  *    must display the following acknowledgement:
        !            40:  *     This product includes software developed by the University of
        !            41:  *     California, Berkeley and its contributors.
        !            42:  * 4. Neither the name of the University nor the names of its contributors
        !            43:  *    may be used to endorse or promote products derived from this software
        !            44:  *    without specific prior written permission.
        !            45:  *
        !            46:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
        !            47:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
        !            48:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
        !            49:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
        !            50:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
        !            51:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
        !            52:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
        !            53:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
        !            54:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
        !            55:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
        !            56:  * SUCH DAMAGE.
        !            57:  *
        !            58:  *     @(#)mman.h      8.2 (Berkeley) 1/9/95
        !            59:  */
        !            60: 
        !            61: #ifndef        _SYS_MMAN_H_
        !            62: #define _SYS_MMAN_H_
        !            63: 
        !            64: /*
        !            65:  * Protections are chosen from these bits, or-ed together
        !            66:  */
        !            67: #define        PROT_NONE       0x00    /* no permissions */
        !            68: #define        PROT_READ       0x01    /* pages can be read */
        !            69: #define        PROT_WRITE      0x02    /* pages can be written */
        !            70: #define        PROT_EXEC       0x04    /* pages can be executed */
        !            71: 
        !            72: /*
        !            73:  * Flags contain sharing type and options.
        !            74:  * Sharing types; choose one.
        !            75:  */
        !            76: #define        MAP_SHARED      0x0001  /* share changes */
        !            77: #define        MAP_PRIVATE     0x0002  /* changes are private */
        !            78: #define        MAP_COPY        0x0004  /* "copy" region at mmap time */
        !            79: 
        !            80: /*
        !            81:  * Other flags
        !            82:  */
        !            83: #define        MAP_FIXED        0x0010 /* map addr must be exactly as requested */
        !            84: #define        MAP_RENAME       0x0020 /* Sun: rename private pages to file */
        !            85: #define        MAP_NORESERVE    0x0040 /* Sun: don't reserve needed swap area */
        !            86: #define        MAP_INHERIT      0x0080 /* region is retained after exec */
        !            87: #define        MAP_NOEXTEND     0x0100 /* for MAP_FILE, don't change file size */
        !            88: #define        MAP_HASSEMAPHORE 0x0200 /* region may contain semaphores */
        !            89: 
        !            90: /*
        !            91:  * Mapping type
        !            92:  */
        !            93: #define        MAP_FILE        0x0000  /* map from file (default) */
        !            94: #define        MAP_ANON        0x1000  /* allocated from memory, swap space */
        !            95: 
        !            96: /*
        !            97:  * Advice to madvise
        !            98:  */
        !            99: #define        MADV_NORMAL     0       /* no further special treatment */
        !           100: #define        MADV_RANDOM     1       /* expect random page references */
        !           101: #define        MADV_SEQUENTIAL 2       /* expect sequential page references */
        !           102: #define        MADV_WILLNEED   3       /* will need these pages */
        !           103: #define        MADV_DONTNEED   4       /* dont need these pages */
        !           104: 
        !           105: #ifndef _KERNEL
        !           106: 
        !           107: #include <sys/cdefs.h>
        !           108: 
        !           109: __BEGIN_DECLS
        !           110: /* Some of these int's should probably be size_t's */
        !           111: caddr_t        mmap __P((caddr_t, size_t, int, int, int, off_t));
        !           112: int    mprotect __P((caddr_t, size_t, int));
        !           113: int    munmap __P((caddr_t, size_t));
        !           114: int    msync __P((caddr_t, size_t));
        !           115: int    mlock __P((caddr_t, size_t));
        !           116: int    munlock __P((caddr_t, size_t));
        !           117: int    madvise __P((caddr_t, size_t, int));
        !           118: __END_DECLS
        !           119: 
        !           120: #endif /* !_KERNEL */
        !           121: #endif /* !_SYS_MMAN_H_ */

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