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114 lines
2.8 KiB
C++
114 lines
2.8 KiB
C++
// -*- C++ -*-
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//=============================================================================
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/**
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* @file os_mman.h
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*
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* memory management declarations
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*
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* $Id: os_mman.h 97262 2013-08-09 08:32:10Z johnnyw $
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*
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* @author Don Hinton <dhinton@dresystems.com>
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* @author This code was originally in various places including ace/OS.h.
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*/
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//=============================================================================
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#ifndef ACE_OS_INCLUDE_SYS_OS_MMAN_H
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#define ACE_OS_INCLUDE_SYS_OS_MMAN_H
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#include /**/ "ace/pre.h"
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#include /**/ "ace/config-lite.h"
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#if !defined (ACE_LACKS_PRAGMA_ONCE)
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# pragma once
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#endif /* ACE_LACKS_PRAGMA_ONCE */
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#include "ace/os_include/sys/os_types.h"
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#if defined (ACE_LACKS_MMAP)
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# define ACE_LACKS_SYS_MMAN_H
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#endif /* ACE_LACKS_MMAP */
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#if !defined (ACE_LACKS_SYS_MMAN_H)
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# include /**/ <sys/mman.h>
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#endif /* ACE_LACKS_SYS_MMAN_H */
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// Place all additions (especially function declarations) within extern "C" {}
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#ifdef __cplusplus
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extern "C"
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{
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#endif /* __cplusplus */
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#if defined (ACE_LACKS_SYS_MMAN_H) && !defined (ACE_WIN32)
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# define PROT_READ 0
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# define PROT_WRITE 0
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# define PROT_EXEC 0
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# define PROT_NONE 0
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# define PROT_RDWR 0
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# define MAP_PRIVATE 0
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# define MAP_SHARED 0
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# define MAP_FIXED 0
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#elif defined (ACE_WIN32)
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// These two may be used for internal flags soon:
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# define MAP_PRIVATE 1
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# define MAP_SHARED 2
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# define MAP_FIXED 4
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// MMAP flags
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# define PROT_READ PAGE_READONLY
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# define PROT_WRITE PAGE_READWRITE
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# define PROT_RDWR PAGE_READWRITE
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/* If we can find suitable use for these flags, here they are:
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PAGE_WRITECOPY
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PAGE_EXECUTE
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PAGE_EXECUTE_READ
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PAGE_EXECUTE_READWRITE
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PAGE_EXECUTE_WRITECOPY
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PAGE_GUARD
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PAGE_NOACCESS
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PAGE_NOCACHE */
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#endif /* !ACE_LACKS_SYS_MMAN_H && !ACE_WIN32*/
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# if !defined (ACE_MAP_PRIVATE)
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# define ACE_MAP_PRIVATE MAP_PRIVATE
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# endif /* ! ACE_MAP_PRIVATE */
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# if !defined (ACE_MAP_SHARED)
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# define ACE_MAP_SHARED MAP_SHARED
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# endif /* ! ACE_MAP_SHARED */
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# if !defined (ACE_MAP_FIXED)
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# define ACE_MAP_FIXED MAP_FIXED
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# endif /* ! ACE_MAP_FIXED */
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# if !defined (MAP_FAILED)
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# define MAP_FAILED ((void *) -1)
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# elif defined (ACE_HAS_LONG_MAP_FAILED)
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# undef MAP_FAILED
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# define MAP_FAILED ((void *) -1L)
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# endif /* !MAP_FAILED */
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#if !defined (PROT_RDWR)
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# define PROT_RDWR (PROT_READ|PROT_WRITE)
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#endif /* PROT_RDWR */
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# if defined (ACE_WIN32)
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// Needed to map calls to NT transparently.
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# define MS_ASYNC 0
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# define MS_INVALIDATE 0
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# endif /* ACE_WIN32 */
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# if !defined (MS_SYNC)
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# define MS_SYNC 0x0
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# endif /* !MS_SYNC */
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#if !defined (ACE_LACKS_MADVISE) && defined (ACE_LACKS_MADVISE_PROTOTYPE)
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extern "C" int madvise(caddr_t, size_t, int);
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#endif /* !ACE_LACKS_MADVISE && ACE_LACKS_MADVISE_PROTOTYPE */
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#include /**/ "ace/post.h"
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#endif /* ACE_OS_INCLUDE_SYS_OS_MMAN_H */
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