Created
June 9, 2022 11:46
-
-
Save yay/d7a32051efca6460f497f58581ba8e9f to your computer and use it in GitHub Desktop.
mman.h
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
/* | |
* Copyright (c) 2000-2020 Apple Computer, Inc. All rights reserved. | |
* | |
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@ | |
* | |
* This file contains Original Code and/or Modifications of Original Code | |
* as defined in and that are subject to the Apple Public Source License | |
* Version 2.0 (the 'License'). You may not use this file except in | |
* compliance with the License. The rights granted to you under the License | |
* may not be used to create, or enable the creation or redistribution of, | |
* unlawful or unlicensed copies of an Apple operating system, or to | |
* circumvent, violate, or enable the circumvention or violation of, any | |
* terms of an Apple operating system software license agreement. | |
* | |
* Please obtain a copy of the License at | |
* http://www.opensource.apple.com/apsl/ and read it before using this file. | |
* | |
* The Original Code and all software distributed under the License are | |
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER | |
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, | |
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, | |
* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. | |
* Please see the License for the specific language governing rights and | |
* limitations under the License. | |
* | |
* @APPLE_OSREFERENCE_LICENSE_HEADER_END@ | |
*/ | |
/* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */ | |
/*- | |
* Copyright (c) 1982, 1986, 1993 | |
* The Regents of the University of California. All rights reserved. | |
* | |
* Redistribution and use in source and binary forms, with or without | |
* modification, are permitted provided that the following conditions | |
* are met: | |
* 1. Redistributions of source code must retain the above copyright | |
* notice, this list of conditions and the following disclaimer. | |
* 2. Redistributions in binary form must reproduce the above copyright | |
* notice, this list of conditions and the following disclaimer in the | |
* documentation and/or other materials provided with the distribution. | |
* 3. All advertising materials mentioning features or use of this software | |
* must display the following acknowledgement: | |
* This product includes software developed by the University of | |
* California, Berkeley and its contributors. | |
* 4. Neither the name of the University nor the names of its contributors | |
* may be used to endorse or promote products derived from this software | |
* without specific prior written permission. | |
* | |
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | |
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
* SUCH DAMAGE. | |
* | |
* @(#)mman.h 8.1 (Berkeley) 6/2/93 | |
*/ | |
/* | |
* Currently unsupported: | |
* | |
* [TYM] POSIX_TYPED_MEM_ALLOCATE | |
* [TYM] POSIX_TYPED_MEM_ALLOCATE_CONTIG | |
* [TYM] POSIX_TYPED_MEM_MAP_ALLOCATABLE | |
* [TYM] struct posix_typed_mem_info | |
* [TYM] posix_mem_offset() | |
* [TYM] posix_typed_mem_get_info() | |
* [TYM] posix_typed_mem_open() | |
*/ | |
#ifndef _SYS_MMAN_H_ | |
#define _SYS_MMAN_H_ | |
#include <sys/appleapiopts.h> | |
#include <sys/cdefs.h> | |
#include <sys/_types.h> | |
/* | |
* [various] The mode_t, off_t, and size_t types shall be defined as | |
* described in <sys/types.h> | |
*/ | |
#include <sys/_types/_mode_t.h> | |
#include <sys/_types/_off_t.h> | |
#include <sys/_types/_size_t.h> | |
#if __DARWIN_C_LEVEL >= 200809L | |
#include <Availability.h> | |
#endif /* __DARWIN_C_LEVEL */ | |
/* | |
* Protections are chosen from these bits, or-ed together | |
*/ | |
#define PROT_NONE 0x00 /* [MC2] no permissions */ | |
#define PROT_READ 0x01 /* [MC2] pages can be read */ | |
#define PROT_WRITE 0x02 /* [MC2] pages can be written */ | |
#define PROT_EXEC 0x04 /* [MC2] pages can be executed */ | |
/* | |
* Flags contain sharing type and options. | |
* Sharing types; choose one. | |
*/ | |
#define MAP_SHARED 0x0001 /* [MF|SHM] share changes */ | |
#define MAP_PRIVATE 0x0002 /* [MF|SHM] changes are private */ | |
#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) | |
#define MAP_COPY MAP_PRIVATE /* Obsolete */ | |
#endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */ | |
/* | |
* Other flags | |
*/ | |
#define MAP_FIXED 0x0010 /* [MF|SHM] interpret addr exactly */ | |
#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) | |
#define MAP_RENAME 0x0020 /* Sun: rename private pages to file */ | |
#define MAP_NORESERVE 0x0040 /* Sun: don't reserve needed swap area */ | |
#define MAP_RESERVED0080 0x0080 /* previously unimplemented MAP_INHERIT */ | |
#define MAP_NOEXTEND 0x0100 /* for MAP_FILE, don't change file size */ | |
#define MAP_HASSEMAPHORE 0x0200 /* region may contain semaphores */ | |
#define MAP_NOCACHE 0x0400 /* don't cache pages for this mapping */ | |
#define MAP_JIT 0x0800 /* Allocate a region that will be used for JIT purposes */ | |
/* | |
* Mapping type | |
*/ | |
#define MAP_FILE 0x0000 /* map from file (default) */ | |
#define MAP_ANON 0x1000 /* allocated from memory, swap space */ | |
#define MAP_ANONYMOUS MAP_ANON | |
/* | |
* The MAP_RESILIENT_* flags can be used when the caller wants to map some | |
* possibly unreliable memory and be able to access it safely, possibly | |
* getting the wrong contents rather than raising any exception. | |
* For safety reasons, such mappings have to be read-only (PROT_READ access | |
* only). | |
* | |
* MAP_RESILIENT_CODESIGN: | |
* accessing this mapping will not generate code-signing violations, | |
* even if the contents are tainted. | |
* MAP_RESILIENT_MEDIA: | |
* accessing this mapping will not generate an exception if the contents | |
* are not available (unreachable removable or remote media, access beyond | |
* end-of-file, ...). Missing contents will be replaced with zeroes. | |
*/ | |
#define MAP_RESILIENT_CODESIGN 0x2000 /* no code-signing failures */ | |
#define MAP_RESILIENT_MEDIA 0x4000 /* no backing-store failures */ | |
#if defined(__MAC_OS_X_VERSION_MIN_REQUIRED) && __MAC_OS_X_VERSION_MIN_REQUIRED >= 101500 | |
#define MAP_32BIT 0x8000 /* Return virtual addresses <4G only */ | |
#endif /* defined(__MAC_OS_X_VERSION_MIN_REQUIRED) && __MAC_OS_X_VERSION_MIN_REQUIRED >= 101500 */ | |
/* | |
* Flags used to support translated processes. | |
*/ | |
#define MAP_TRANSLATED_ALLOW_EXECUTE 0x20000 /* allow execute in translated processes */ | |
#define MAP_UNIX03 0x40000 /* UNIX03 compliance */ | |
#endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */ | |
/* | |
* Process memory locking | |
*/ | |
#define MCL_CURRENT 0x0001 /* [ML] Lock only current memory */ | |
#define MCL_FUTURE 0x0002 /* [ML] Lock all future memory as well */ | |
/* | |
* Error return from mmap() | |
*/ | |
#define MAP_FAILED ((void *)-1) /* [MF|SHM] mmap failed */ | |
/* | |
* msync() flags | |
*/ | |
#define MS_ASYNC 0x0001 /* [MF|SIO] return immediately */ | |
#define MS_INVALIDATE 0x0002 /* [MF|SIO] invalidate all cached data */ | |
#define MS_SYNC 0x0010 /* [MF|SIO] msync synchronously */ | |
#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) | |
#define MS_KILLPAGES 0x0004 /* invalidate pages, leave mapped */ | |
#define MS_DEACTIVATE 0x0008 /* deactivate pages, leave mapped */ | |
#endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */ | |
/* | |
* Advice to madvise | |
*/ | |
#define POSIX_MADV_NORMAL 0 /* [MC1] no further special treatment */ | |
#define POSIX_MADV_RANDOM 1 /* [MC1] expect random page refs */ | |
#define POSIX_MADV_SEQUENTIAL 2 /* [MC1] expect sequential page refs */ | |
#define POSIX_MADV_WILLNEED 3 /* [MC1] will need these pages */ | |
#define POSIX_MADV_DONTNEED 4 /* [MC1] dont need these pages */ | |
#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) | |
#define MADV_NORMAL POSIX_MADV_NORMAL | |
#define MADV_RANDOM POSIX_MADV_RANDOM | |
#define MADV_SEQUENTIAL POSIX_MADV_SEQUENTIAL | |
#define MADV_WILLNEED POSIX_MADV_WILLNEED | |
#define MADV_DONTNEED POSIX_MADV_DONTNEED | |
#define MADV_FREE 5 /* pages unneeded, discard contents */ | |
#define MADV_ZERO_WIRED_PAGES 6 /* zero the wired pages that have not been unwired before the entry is deleted */ | |
#define MADV_FREE_REUSABLE 7 /* pages can be reused (by anyone) */ | |
#define MADV_FREE_REUSE 8 /* caller wants to reuse those pages */ | |
#define MADV_CAN_REUSE 9 | |
#define MADV_PAGEOUT 10 /* page out now (internal only) */ | |
/* | |
* Return bits from mincore | |
*/ | |
#define MINCORE_INCORE 0x1 /* Page is incore */ | |
#define MINCORE_REFERENCED 0x2 /* Page has been referenced by us */ | |
#define MINCORE_MODIFIED 0x4 /* Page has been modified by us */ | |
#define MINCORE_REFERENCED_OTHER 0x8 /* Page has been referenced */ | |
#define MINCORE_MODIFIED_OTHER 0x10 /* Page has been modified */ | |
#define MINCORE_PAGED_OUT 0x20 /* Page has been paged out */ | |
#define MINCORE_COPIED 0x40 /* Page has been copied */ | |
#define MINCORE_ANONYMOUS 0x80 /* Page belongs to an anonymous object */ | |
#endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */ | |
__BEGIN_DECLS | |
/* [ML] */ | |
int mlockall(int); | |
int munlockall(void); | |
/* [MR] */ | |
int mlock(const void *, size_t); | |
#ifndef _MMAP | |
#define _MMAP | |
/* [MC3]*/ | |
void * mmap(void *, size_t, int, int, int, off_t) __DARWIN_ALIAS(mmap); | |
#endif | |
/* [MPR] */ | |
int mprotect(void *, size_t, int) __DARWIN_ALIAS(mprotect); | |
/* [MF|SIO] */ | |
int msync(void *, size_t, int) __DARWIN_ALIAS_C(msync); | |
/* [MR] */ | |
int munlock(const void *, size_t); | |
/* [MC3]*/ | |
int munmap(void *, size_t) __DARWIN_ALIAS(munmap); | |
/* [SHM] */ | |
int shm_open(const char *, int, ...); | |
int shm_unlink(const char *); | |
/* [ADV] */ | |
int posix_madvise(void *, size_t, int); | |
#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) | |
int madvise(void *, size_t, int); | |
int mincore(const void *, size_t, char *); | |
int minherit(void *, size_t, int); | |
#endif | |
__END_DECLS | |
#endif /* !_SYS_MMAN_H_ */ |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment