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PsnFramedMemoryManager.h

Go to the documentation of this file.

/*
 * This file is part of openMask © INRIA, CNRS, Universite de Rennes 1 1993-2002, thereinafter the Software
 * 
 * The Software has been developped within the Siames Project. 
 * INRIA, the University of Rennes 1 and CNRS jointly hold intellectual property rights
 * 
 * The Software has been registered with the Agence pour la Protection des
 * Programmes (APP) under registration number IDDN.FR.001.510008.00.S.P.2001.000.41200
 *
 * This file may be distributed under the terms of the Q Public License
 * version 1.0 as defined by Trolltech AS of Norway and appearing in the file
 * LICENSE.QPL included in the packaging of this file.
 *
 * Licensees holding valid specific licenses issued by INRIA, CNRS or Université de Rennes 1 
 * for the software may use this file in accordance with that specific license 
 *
 */
#ifndef PsnFramedMemoryManagerHEADER
#define PsnFramedMemoryManagerHEADER

#include <PsnSecondarySharedMemoryManager.h>

#ifdef _SGI
#include <set.h>
#else
#include <set>
#endif

class PsnRelaxedMemoryManager;

class PsnFramedMemoryManager : public PsnSecondarySharedMemoryManager {
public:

   PsnFramedMemoryManager(size_t sizeDsm, size_t pageSize, size_t alignedSize, PsnRelaxedMemoryManager & memoryManager, int queueSize );
   virtual ~PsnFramedMemoryManager();

   //------------------------------------------------------------------//

   virtual void sync() ;

protected:

   //----------------------- Frame management internals ------------------//

   /* the frame in wich allocation needs to be done, for it's the frame which is writable at the current simulation step */ 
   int _currentWritableIndex ;

   int _queueSize ;

   //----------------------- synchronisation instructions ----------------//

   void addBlockInSync (int blockNumber) ;

   void removeBlockFromSync (int blockNumber) ;

   virtual void addPageInSync (int pageNumber, int whenSynced) ;
   
   virtual void removePageFromSync (int pageNumber, int whenSynced) ;

   set<pair<int,int> > _listToBeMarkedSynced ;

   size_t _blockSize ;

   //---------------------------------- virtual function to be redefined -----------------------//
   virtual void * getFromFree ( size_t size ) ;

   virtual void addInFree ( void * ptr, size_t size) ;
};

#endif

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