Lunchbox
1.4.0
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00001 00002 /* Copyright (c) 2009-2012, Stefan Eilemann <eile@equalizergraphics.com> 00003 * 00004 * This library is free software; you can redistribute it and/or modify it under 00005 * the terms of the GNU Lesser General Public License version 2.1 as published 00006 * by the Free Software Foundation. 00007 * 00008 * This library is distributed in the hope that it will be useful, but WITHOUT 00009 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS 00010 * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more 00011 * details. 00012 * 00013 * You should have received a copy of the GNU Lesser General Public License 00014 * along with this library; if not, write to the Free Software Foundation, Inc., 00015 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. 00016 */ 00017 00018 #ifndef LUNCHBOX_MEMORYMAP_H 00019 #define LUNCHBOX_MEMORYMAP_H 00020 00021 #include <lunchbox/api.h> 00022 #include <lunchbox/nonCopyable.h> 00023 00024 #include <string> 00025 00026 namespace lunchbox 00027 { 00029 class MemoryMap : public NonCopyable 00030 { 00031 public: 00033 LUNCHBOX_API MemoryMap(); 00034 00042 LUNCHBOX_API ~MemoryMap(); 00043 00054 LUNCHBOX_API const void* map( const std::string& fileName ); 00055 00057 LUNCHBOX_API void unmap(); 00058 00060 const void* getAddress() const { return _ptr; } 00061 00063 size_t getSize() const { return _size; } 00064 00065 private: 00066 #ifdef _WIN32 00067 void* _map; 00068 #else 00069 int _fd; 00070 #endif 00071 00072 void* _ptr; 00073 size_t _size; 00074 }; 00075 } 00076 00077 #endif //LUNCHBOX_MEMORYMAP_H