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PsnMultiThreadedScheduler.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 PsnMultiThreadedSchedulerHEADER
#define PsnMultiThreadedSchedulerHEADER

#include "PsnScheduler.h"
#include <pthread.h>
#include <map>
#include <vector>

//include this for profiling
#include <sys/time.h>

class PsnFrameScheduler ;
class PsnBarrier ;

class PsnMultiThreadedScheduler : public PsnScheduler 
{
public:
   PsnMultiThreadedScheduler(unsigned int numberOfSteps, unsigned int numberOfThreads, bool createThreadAndLocalSchedulers ) ;


   virtual ~PsnMultiThreadedScheduler() ;

   virtual void addToScheduable (PsnReferenceObjectHandle * ref, unsigned int when) ;

   virtual void addToScheduable (PsnReferenceObjectHandle * ref, unsigned int when, unsigned int whichThread) ;

   virtual void removeFromScheduable (PsnReferenceObjectHandle * ref) ;

   virtual void schedule(PsnReferenceObjectHandle * ref) ;

   virtual void unschedule(PsnReferenceObjectHandle * ref) ;

   virtual void runStep (unsigned int which) ;

   virtual void run ( unsigned int whichFrameScheduler ) ;

protected:
   static void * _threadContainer ( void * ) ;
   
   unsigned int _currentStep ;

   unsigned int _numberOfThreads ;

   vector <PsnScheduler * > * _localSchedulers ;

   PsnScheduler * _duplicatedObjectScheduler ;

   PsnBarrier * _barrier ;

   unsigned int _nextThreadForScheduling ;

   map<PsnReferenceObjectHandle *, unsigned int> _whichThread ;

   pthread_t  * _threadIds ;   

   itimerval  * _profilingTimer;   

   vector <pair<PsnScheduler *, unsigned int> * > * _threadData ;

   long * * _localWaitingTimes ;

   int _numberOfSamples ;
};

#endif

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