vrfResourceManager.h

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/******************************************************************************
** Copyright (c) 2015 MAK Technologies, Inc.
** All rights reserved.
******************************************************************************/



#pragma once

#include <vrfGuiCore/vrfGuiCore.h>
#include <vrvUtil/DtVirtualBaseClass.h>
#include <vrfMsgTransport/resourceResponseEvent.h>

#include <vrfutil/rwUUID.h>
#include <boost/signals2.hpp>

#include <set>

namespace makVrv
{
   class DtDe;
}

namespace makVrfEvents
{
   class DtResourceResponseEvent;
}

namespace makVrf
{
   class DtEventManagerEventInterface;

   class DT_DLL_VRFGUICORE DtVrfResourceManager : public makVrv::DtVirtualBaseClass
   {
   public:
      DtVrfResourceManager(makVrv::DtDe&);
      virtual ~DtVrfResourceManager() override;

      static DtVrfResourceManager& instance(makVrv::DtDe& de);

   public:
      virtual void requestResourcesFor(const std::vector<DtUUID>& names);
      boost::signals2::signal<void (const makVrfEvents::DtResourceResponseEvent&)> signal_resourceResponse;

      virtual void startMonitoring(const DtUUID&, int period);

      virtual bool stopMonitoring(const DtUUID&);

      virtual int updateRateFor(const DtUUID&);

      virtual void setUpdateRate(const DtUUID&, int);

      bool monitoring(const DtUUID& uuid) const
      {
         return (myMonitoring.find(uuid) != myMonitoring.end());
      }

   protected:
      virtual void processResourceResponse(DtEventManagerEventInterface*);

   protected:
      makVrv::DtDe&                       myDe;
      std::map<DtUUID, int>          myUpdateRates;

      struct Monitoring
      {
         int referenceCount = 1;
         makVrfEvents::DtResourceResponseEvent resources;
      };

      typedef std::map<DtUUID, Monitoring>  DtMonitoringMap;
      DtMonitoringMap                     myMonitoring;

      std::set<unsigned> myRequests;
      boost::signals2::scoped_connection myResourceResponseConnection;
   };
}