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PsnSecondarySharedMemoryManager.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 PsnSecondarySharedMemoryManagerHEADER
#define PsnSecondarySharedMemoryManagerHEADER

#include <PsnSharedMemoryManager.h>

#include "PsnMutexLock.h"

class PsnRelaxedMemoryManager;

class PsnSecondarySharedMemoryManager : public PsnSharedMemoryManager {
public:

   PsnSecondarySharedMemoryManager(size_t sizeDsm, size_t pageSize, size_t alignedSize, PsnRelaxedMemoryManager & memoryManager);

   virtual ~PsnSecondarySharedMemoryManager();

protected:
   virtual void lock( ) ;

   virtual void unlock( ) ;

   virtual bool lockNeeded ( ) ;

   virtual void synchronizeAfterLock(void *, long int);

   virtual void sync() = 0 ;


   //---------------------------------------------------------------------//
   virtual void * getFromThisFree ( PsnMemoryElementDescriptor * * startFreeList, size_t size ) ;

   virtual void addInThisFree (PsnMemoryElementDescriptor * * startFreeList, unsigned int base, size_t size) ;

   PsnRelaxedMemoryManager & _myMemoryManager ;

   unsigned int _firstPageOffset ;
};

#endif

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