misc/libphysfs/lzma/CPP/Windows/FileMapping.h
author nemo
Mon, 10 Apr 2017 12:06:43 -0400
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permissions -rw-r--r--
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// Windows/FileMapping.h
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#ifndef __WINDOWS_FILEMAPPING_H
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#define __WINDOWS_FILEMAPPING_H
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#include "Windows/Handle.h"
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#include "Windows/Defs.h"
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namespace NWindows {
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// namespace NFile {
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// namespace NMapping {
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class CFileMapping: public CHandle
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{
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public:
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  bool Create(HANDLE file, LPSECURITY_ATTRIBUTES attributes,
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    DWORD protect, UINT64 maximumSize, LPCTSTR name)
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  {
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    _handle = ::CreateFileMapping(file, attributes,
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      protect, DWORD(maximumSize >> 32), DWORD(maximumSize), name);
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    return (_handle != NULL);
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  }
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  bool Open(DWORD desiredAccess, bool inheritHandle, LPCTSTR name)
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  {
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    _handle = ::OpenFileMapping(desiredAccess, BoolToBOOL(inheritHandle), name);
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    return (_handle != NULL);
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  }
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  LPVOID MapViewOfFile(DWORD desiredAccess, UINT64 fileOffset, 
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      SIZE_T numberOfBytesToMap)
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  {
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    return ::MapViewOfFile(_handle, desiredAccess, 
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        DWORD(fileOffset >> 32), DWORD(fileOffset), numberOfBytesToMap);
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  }
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  LPVOID MapViewOfFileEx(DWORD desiredAccess, UINT64 fileOffset, 
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      SIZE_T numberOfBytesToMap, LPVOID baseAddress)
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  {
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    return ::MapViewOfFileEx(_handle, desiredAccess, 
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      DWORD(fileOffset >> 32), DWORD(fileOffset), 
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      numberOfBytesToMap, baseAddress);
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  }
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};
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}
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#endif