53 lines
1.7 KiB
C++
53 lines
1.7 KiB
C++
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/***********************************************************************
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* Copyright 2011-2014 Computer Graphics Group RWTH Aachen University. *
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* All rights reserved. *
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* Distributed under the terms of the MIT License (see LICENSE.TXT). *
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**********************************************************************/
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#pragma once
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///////////////////////////////////////
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//
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// only compile on windows platform
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//
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///////////////////////////////////////
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#ifdef _WIN32
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#include "MemoryMappedFile.hh"
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#include <Windows.h>
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class MemoryMappedFileWinImpl
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{
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public:
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/*******************************************************************************
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* Windows implementation only allows path with length of 260 characters or less
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* If you need more, use wchar instead and convert the path as described by msdn
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* http://msdn.microsoft.com/en-us/library/windows/desktop/aa365247(v=vs.85).aspx
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*
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* off_t is in windows a long integer so you can address 64 byte file mappings
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* when creating a file map two dword are used.
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*******************************************************************************/
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MemoryMappedFileWinImpl(const char* _fileName,
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ACGL::Utils::MemoryMappedFile::accessMode _accessMode,
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ACGL::Utils::MemoryMappedFile::shareMode _shareMode,
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size_t _length = 0,
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off_t _offset = 0);
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char * data();
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const char * data() const;
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int errorCode();
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int errorCode() const;
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off_t pageOffset();
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off_t pageOffset() const;
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off_t length();
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off_t length() const;
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~MemoryMappedFileWinImpl();
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private:
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DWORD mErrorCode;
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char* mpData;
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off_t mPageOffset;
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off_t mLength;
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HANDLE mFileHandle;
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HANDLE mFileMappingHandle;
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};
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#endif
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