/////////////////////////////////////////////////////////////////////////////// 
// Copyright (C) 2002-2019, Open Design Alliance (the "Alliance"). 
// All rights reserved. 
// 
// This software and its documentation and related materials are owned by 
// the Alliance. The software may only be incorporated into application 
// programs owned by members of the Alliance, subject to a signed 
// Membership Agreement and Supplemental Software License Agreement with the
// Alliance. The structure and organization of this software are the valuable  
// trade secrets of the Alliance and its suppliers. The software is also 
// protected by copyright law and international treaty provisions. Application  
// programs incorporating this software must include the following statement 
// with their copyright notices:
//   
//   This application incorporates Open Design Alliance software pursuant to a license 
//   agreement with Open Design Alliance.
//   Open Design Alliance Copyright (C) 2002-2019 by Open Design Alliance. 
//   All rights reserved.
//
// By use of this software, its documentation or related materials, you 
// acknowledge and accept the above terms.
///////////////////////////////////////////////////////////////////////////////

#ifndef __WINRT_APP_SERVICE_H__
#define __WINRT_APP_SERVICE_H__
#include <OdaCommon.h>
#include <DbDatabase.h>
#include <DbSystemServices.h>
#include <ExDgnHostAppServices.h>
#include <ExDgnServices.h>
#include <DgDatabase.h>

class WinRTAppServices;

static WinRTAppServices* instance = NULL;
static OdMutex WinRTAppServices_classMutex;


class WinRTAppServices : public OdExDgnSystemServices, public OdExDgnHostAppServices {
  
public:
  static WinRTAppServices* getInstance()
  {
    if (instance == NULL)
    {
      instance = new WinRTAppServices();
    }
    return instance;
  }

  ~WinRTAppServices() {}

  WinRTAppServices() : mCnt (0){}

  void addRef() {
    TD_AUTOLOCK(WinRTAppServices_classMutex);
    mCnt++;
  }

  void release() {
    TD_AUTOLOCK(WinRTAppServices_classMutex);
    mCnt--;
    if (mCnt == 0) { delete this; instance = NULL; }
  }
  
protected:
  
private:
  int mCnt;
};

#endif