predicateCallbackManager.h

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/*******************************************************************************
** Copyright (c) 2020 MAK Technologies, Inc.
** All rights reserved.
*******************************************************************************/

#pragma once

#include "vrfobjcore/vrfobjcoreDefines.h"
#include "vrfobjcore/vrfObjectPredicateCallbackInfo.h"
#include "vrfobjcore/vrfObjectPredicate.h"
#include "vrfobjcore/vrfObjectPredicateEvaluator.h"
#include "tbb/spin_rw_mutex.h"

class DtSimulationServices;

class DT_DLL_vrfobjcore DtPredicateCallbackManager
{
private:

   DtPredicateCallbackManager();
   DtPredicateCallbackManager(const DtPredicateCallbackManager& orig);
   DtPredicateCallbackManager& operator=(const DtPredicateCallbackManager& orig);

public:
   DtPredicateCallbackManager(const DtSimulationServices* simManager);
   virtual ~DtPredicateCallbackManager();


   void addSimObjectPredicateCallback(DtSimObjectReference,
      DtVrfObjectPredicateCallbackFunction function, 
      const DtVrfObjectPredicate& predicate, DtTime evaluationPeriod = 0, 
      void* userData = 0);
   void removeSimObjectPredicateCallback(const DtSimObject*,
      DtVrfObjectPredicateCallbackFunction function, 
      const DtVrfObjectPredicate& predicate, DtTime evaluationPeriod = 0, 
      void* userData = 0);

   void invokeSimObjectPredicateCallbacks();

   virtual void clearPredicateCallbacks();

   virtual void removeAllPredicatesFor(const DtSimObject*);

protected:
   const DtSimulationServices* mySimulationServices;
   typedef std::list< std::pair<DtSimObjectReference, boost::shared_ptr<DtVrfObjectPredicateCallbackInfo> > > PredicateList;
   struct PredicateInfo
   {
      PredicateList list;
      boost::signals2::connection removalConnection;
   };

   typedef std::map<DtUUID, PredicateInfo> PredicateCallbackList;
   PredicateCallbackList myPredicateCallbackList;

   tbb::spin_rw_mutex myPredicateCallbackManagerMutex;
};