170 lines
5.4 KiB
C
170 lines
5.4 KiB
C
/* $NetBSD: mman.h,v 1.28 2000/10/18 01:43:18 assar Exp $ */
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/*-
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* Copyright (c) 1982, 1986, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)mman.h 8.2 (Berkeley) 1/9/95
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*/
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#ifndef _SYS_MMAN_H_
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#define _SYS_MMAN_H_
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#include <sys/featuretest.h>
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#include <machine/ansi.h>
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#ifdef _BSD_SIZE_T_
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typedef _BSD_SIZE_T_ size_t;
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#undef _BSD_SIZE_T_
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#endif
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#include <sys/ansi.h>
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#ifndef mode_t
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typedef __mode_t mode_t;
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#define mode_t __mode_t
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#endif
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#ifndef off_t
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typedef __off_t off_t; /* file offset */
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#define off_t __off_t
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#endif
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/*
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* Protections are chosen from these bits, or-ed together
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*/
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#define PROT_NONE 0x00 /* no permissions */
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#define PROT_READ 0x01 /* pages can be read */
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#define PROT_WRITE 0x02 /* pages can be written */
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#define PROT_EXEC 0x04 /* pages can be executed */
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/*
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* Flags contain sharing type and options.
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* Sharing types; choose one.
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*/
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#define MAP_SHARED 0x0001 /* share changes */
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#define MAP_PRIVATE 0x0002 /* changes are private */
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#ifdef _KERNEL
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/*
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* Deprecated flag; these are treated as MAP_PRIVATE internally by
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* the kernel.
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*/
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#define MAP_COPY 0x0004 /* "copy" region at mmap time */
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#endif
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/*
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* Other flags
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*/
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#define MAP_FIXED 0x0010 /* map addr must be exactly as requested */
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#define MAP_RENAME 0x0020 /* Sun: rename private pages to file */
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#define MAP_NORESERVE 0x0040 /* Sun: don't reserve needed swap area */
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#define MAP_INHERIT 0x0080 /* region is retained after exec */
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#define MAP_NOEXTEND 0x0100 /* for MAP_FILE, don't change file size */
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#define MAP_HASSEMAPHORE 0x0200 /* region may contain semaphores */
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/*
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* Mapping type
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*/
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#define MAP_FILE 0x0000 /* map from file (default) */
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#define MAP_ANON 0x1000 /* allocated from memory, swap space */
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/*
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* Error indicator returned by mmap(2)
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*/
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#define MAP_FAILED ((void *) -1) /* mmap() failed */
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/*
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* Flags to msync
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*/
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#define MS_ASYNC 0x01 /* perform asynchronous writes */
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#define MS_INVALIDATE 0x02 /* invalidate cached data */
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#define MS_SYNC 0x04 /* perform synchronous writes */
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/*
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* Flags to mlockall
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*/
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#define MCL_CURRENT 0x01 /* lock all pages currently mapped */
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#define MCL_FUTURE 0x02 /* lock all pages mapped in the future */
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#if !defined(_POSIX_C_SOURCE) && !defined(_XOPEN_SOURCE)
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/*
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* Advice to madvise
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*/
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#define MADV_NORMAL 0 /* no further special treatment */
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#define MADV_RANDOM 1 /* expect random page references */
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#define MADV_SEQUENTIAL 2 /* expect sequential page references */
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#define MADV_WILLNEED 3 /* will need these pages */
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#define MADV_DONTNEED 4 /* dont need these pages */
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#define MADV_SPACEAVAIL 5 /* insure that resources are reserved */
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#define MADV_FREE 6 /* pages are empty, free them */
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/*
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* Flags to minherit
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*/
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#define MAP_INHERIT_SHARE 0 /* share with child */
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#define MAP_INHERIT_COPY 1 /* copy into child */
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#define MAP_INHERIT_NONE 2 /* absent from child */
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#define MAP_INHERIT_DONATE_COPY 3 /* copy and delete -- not
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implemented in UVM */
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#define MAP_INHERIT_DEFAULT MAP_INHERIT_COPY
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#endif
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#ifndef _KERNEL
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#include <sys/cdefs.h>
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__BEGIN_DECLS
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void *mmap __P((void *, size_t, int, int, int, off_t));
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int munmap __P((void *, size_t));
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int mprotect __P((void *, size_t, int));
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#ifdef __LIBC12_SOURCE__
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int msync __P((void *, size_t));
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int __msync13 __P((void *, size_t, int));
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#else
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int msync __P((void *, size_t, int)) __RENAME(__msync13);
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#endif
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int mlock __P((const void *, size_t));
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int munlock __P((const void *, size_t));
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int mlockall __P((int));
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int munlockall __P((void));
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#if !defined(_POSIX_C_SOURCE) && !defined(_XOPEN_SOURCE)
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int madvise __P((void *, size_t, int));
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int mincore __P((void *, size_t, char *));
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int minherit __P((void *, size_t, int));
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#endif
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__END_DECLS
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#endif /* !_KERNEL */
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#endif /* !_SYS_MMAN_H_ */
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