ring-buffer.c
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	#include "ring-buffer.h"

	//adds a value into the buffer, if BUFFER_CAPACITY is not reached
	void pushIntoBuffer(RingBuffer *ringBuffer, int data)
	{
	if(ringBuffer->numVals >= BUFFER_CAPACITY)
	{
	return;
	}
	ringBuffer->data[ringBuffer->writeIndex] = data;
	++(ringBuffer->writeIndex);
	++(ringBuffer->numVals);
	ringBuffer->writeIndex &= BUFFER_MASK;
	}

	//gets a value from the buffer and removes it, if the buffer is not empty
	long popFromBuffer(RingBuffer *ringBuffer)
	{
	//check if buffer empty
	if(ringBuffer->numVals <= 0)
	{
	return ringBuffer->lastPoppedVal;
	}
	int data = ringBuffer->data[ringBuffer->readIndex];
	ringBuffer->lastPoppedVal = data;
	++(ringBuffer->readIndex);
	--(ringBuffer->numVals);
	ringBuffer->readIndex &= BUFFER_MASK;
	return data;
	}

	void initBuffer(RingBuffer *ringBuffer)
	{
	ringBuffer->numVals = 0;
	ringBuffer->readIndex = 0;
	ringBuffer->writeIndex = 0;
	ringBuffer->lastPoppedVal = 0;
	}