Updater.h

/*******************************************************************************
Updater.h

Copyright(C) 2017  Howard James May

This file is part of the SweetMaker SDK

The SweetMaker SDK is free software: you can redistribute it and / or
modify it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

The SweetMaker SDK is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.If not, see <http://www.gnu.org/licenses/>.

Contact me at sweet.maker@outlook.com
********************************************************************************
Release     Date                        Change Description
--------|-------------|--------------------------------------------------------|
    1     31-Jan-2017   Initial release
--------|-------------|--------------------------------------------------------|
    2     17-Apr-2017   - Removed unused update frequency
                        - Renamed to AutoUpdater
*******************************************************************************/

#ifndef __UPDATER_H__
#define __UPDATER_H__

#include <stdint.h>
#include "Updater.h"

namespace SweetMaker
{
	/*
	* Forward Declaration
	*/
	class AutoUpdate;

	class AutoUpdateMngr
	{
		friend class AutoUpdate;
	public:
		static AutoUpdateMngr * getUpdater();
		void update();
		void update(uint16_t elapsedTime_ms);

	private:
		AutoUpdateMngr();
		AutoUpdate * updatableListHead;
		unsigned long lastUpdateTime_ms;
	};

	class AutoUpdate
	{
		friend class AutoUpdateMngr;
	public:
		~AutoUpdate();

	protected:
		AutoUpdate();
		virtual void update(uint16_t elapsedTime_ms) = 0;
		void addToUpdater();
		void removeFromUpdater();

	private:
		AutoUpdate * nextUpdatable;
	};
}


#endif