CrystalSpace

Public API Reference

csutil/win32/mmap.h

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00001 /*
00002     Copyright (C) 2005 by Jorrit Tyberghein
00003               (C) 2005 Frank Richter
00004 
00005     This library is free software; you can redistribute it and/or
00006     modify it under the terms of the GNU Library General Public
00007     License as published by the Free Software Foundation; either
00008     version 2 of the License, or (at your option) any later version.
00009 
00010     This library is distributed in the hope that it will be useful,
00011     but WITHOUT ANY WARRANTY; without even the implied warranty of
00012     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00013     Library General Public License for more details.
00014 
00015     You should have received a copy of the GNU Library General Public
00016     License along with this library; if not, write to the Free
00017     Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
00018 */
00019 
00020 #ifndef __CS_CSUTIL_WIN32_MMAP_H__
00021 #define __CS_CSUTIL_WIN32_MMAP_H__
00022 
00023 #include "csextern.h"
00024 
00035 class CS_CRYSTALSPACE_EXPORT csPlatformMemoryMappingWin32
00036 {
00037 public:
00038   struct PlatformMemoryMapping
00039   {
00040     void* realPtr;
00041   };
00042 protected:
00044   HANDLE hMappedFile;
00046   HANDLE hFileMapping;
00047   
00048   size_t granularity;
00049 
00051   csPlatformMemoryMappingWin32 ();
00053   ~csPlatformMemoryMappingWin32 ();
00054   
00055   bool OpenNative (const char* filename);
00056   bool Ok();
00057   size_t GetMaxSize ();
00058   
00066   void MapWindow (PlatformMemoryMapping& mapping, size_t offset, size_t len);
00068   void UnmapWindow (PlatformMemoryMapping& mapping);
00069 };
00070 
00071 
00072 #endif // __CS_CSUTIL_WIN32_MMAP_H__

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