DynamicTimeout.cpp

/*
* The MIT License(MIT)
* Copyright(c) 2016 Lorenzo Delana, https://searchathing.com
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/

#include "DebugMacros.h"
#include "DynamicTimeout.h"
#include "Util.h"

namespace SearchAThing
{

	namespace Arduino
	{

		DynamicTimeout::DynamicTimeout(unsigned int _timeoutBase, unsigned int _timeoutMax)
		{			
			timeoutBase = _timeoutBase;
			timeoutMax = _timeoutMax;

			Reset();
		}

		void DynamicTimeout::Reset()
		{
			begin = millis();
			timeout = timeoutBase;
		}

		bool DynamicTimeout::Expired()
		{
			auto timedout = TimeDiff(begin, millis()) > timeout;
			if (timedout)
			{
				timeout += timeoutBase;
				if (timeout > timeoutMax) timeout = timeoutBase;
				begin = millis();
			}
			return timedout;
		}

	}

}