Equalizer  1.2.1
sharedData.h
00001 
00002 /*
00003  * Copyright (c) 2009, Philippe Robert <philippe.robert@gmail.com> 
00004  *
00005  * Redistribution and use in source and binary forms, with or without
00006  * modification, are permitted provided that the following conditions are met:
00007  *
00008  * - Redistributions of source code must retain the above copyright notice, this
00009  *   list of conditions and the following disclaimer.
00010  * - Redistributions in binary form must reproduce the above copyright notice,
00011  *   this list of conditions and the following disclaimer in the documentation
00012  *   and/or other materials provided with the distribution.
00013  * - Neither the name of Eyescale Software GmbH nor the names of its
00014  *   contributors may be used to endorse or promote products derived from this
00015  *   software without specific prior written permission.
00016  *
00017  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
00018  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
00019  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
00020  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
00021  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
00022  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
00023  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
00024  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
00025  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
00026  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
00027  * POSSIBILITY OF SUCH DAMAGE.
00028  */
00029 
00030 
00031 #ifndef EQNBODY_SHAREDDATA_H
00032 #define EQNBODY_SHAREDDATA_H
00033 
00034 #include <eq/eq.h>
00035 #include <vector>
00036 
00037 #include "frameData.h"
00038 #include "configEvent.h"
00039 
00040 namespace eqNbody
00041 {
00042     class SharedDataProxy;
00043     class Config;
00044     class Controller;
00045     
00046     class SharedData
00047     {
00048     public:
00049         
00050         SharedData(Config *cfg);
00051         virtual ~SharedData();
00052 
00053         const FrameData& getFrameData() const { return _frameData; }
00054         
00055         void registerMemory( const eq::Range& range );
00056         void releaseMemory();
00057         void mapMemory();
00058         void syncMemory();
00059         void updateMemory( const eq::Range& range, Controller *controller );
00060 
00061         float* getPos() { return _frameData.getPos(); }
00062         float* getCol() { return _frameData.getCol(); }
00063         float* getVel() { return _frameData.getVel(); }
00064 
00065         float  getTimeStep() { return _frameData.getTimeStep(); }
00066         uint32_t getNumBytes() { return _frameData.getNumBytes(); }
00067         
00068         bool useStatistics() const { return _frameData.useStatistics(); }
00069         
00070     protected:
00071         
00072     private:   
00073         void _sendEvent( ConfigEvent::Type type, const eq::uint128_t& version,
00074                          const eq::uint128_t& pid, const eq::Range& range);
00075         
00076         std::vector< SharedDataProxy* >    _proxies;
00077         FrameData _frameData;
00078         Config*   _cfg;
00079     };
00080 }
00081 
00082 #endif // EQNBODY_SHAREDDATA_H
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