CircularBuffer.h

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#ifndef CIRCULARBUFFER_H_
#define CIRCULARBUFFER_H_
 
#include <avr/io.h>
#include <stddef.h>

template <class T, size_t MaxElements>
class CircularBuffer
{
    private:
        T queue[MaxElements];              
        volatile uint16_t head;             
        volatile uint16_t tail;             
        
    public:
        
        inline uint8_t empty()
        {
            return (head == tail);  
        }
        
        inline uint8_t full()
        {
            return (head == (tail + 1) % MaxElements);
        }

        inline void enqueue(T* data)
        {           
            queue[tail] = *data;
            tail = (tail + 1) % MaxElements;
        }

        inline T* dequeue()
        {           
            T* data = &queue[head];
            head = (head + 1) % MaxElements;
            return data;
        }
};
 
#endif /* CIRCULARBUFFER_H_ */