DtSharedSettingsManager.h

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/******************************************************************************
** Copyright (c) 2009 MAK Technologies, Inc.
** All rights reserved.
******************************************************************************/


#ifndef DtSharedSettingsManager_H_
#define DtSharedSettingsManager_H_

#include <vrvCore/vrvCore.h>
#include <vrvUtil/DtVirtualBaseClass.h>

//Needed to keep from messing up windows.
#ifndef WIN32_LEAN_AND_MEAN
#define UNDEF_WIN32_LEAN_AND_MEAN
#define WIN32_LEAN_AND_MEAN
#endif

#include <boost/thread/shared_mutex.hpp>

#ifdef UNDEF_WIN32_LEAN_AND_MEAN
#undef UNDEF_WIN32_LEAN_AND_MEAN
#undef WIN32_LEAN_AND_MEAN
#endif

#include <vlutil/vlThread.h>
#include <boost/unordered_map.hpp>

namespace makVrv
{
   class DtEventQueueInterface;
   class DtDe;
   class DtSharedSettings;

   class DT_DLL_VRVCORE DtSharedSettingsManager : public DtVirtualBaseClass
   {
   public:

      template <typename SettingsClass> friend class DtReadSettingsLock;
      template <typename SettingsClass> friend class DtWriteSettingsLock;

      static DtSharedSettingsManager& instance(DtDe&);

      virtual ~DtSharedSettingsManager();

      DtEventQueueInterface& thisThreadEventQueue() const;

      DtEventQueueInterface* findThisThreadEventQueue() const;

   protected:

      const DtSharedSettings* findSettings(const std::string& className) const;
      
      void registerSettings(const std::string& className,DtSharedSettings* setting);

      inline boost::shared_mutex& mutex()
      {
         return myMutex;
      }

   protected:

      DtSharedSettingsManager(DtDe& de);

   private:
      DtSharedSettingsManager(const DtSharedSettingsManager&);
      DtSharedSettingsManager& operator=(DtSharedSettingsManager&);

   protected:
      typedef boost::unordered_map<std::string, DtSharedSettings*> SettingInstances;

      boost::shared_mutex myMutex;
      SettingInstances mySettings;
      DtDe& myUnsafeDe;
      DtThreadId myDeThreadId;

   };
}

#endif