CGDQueue.h

#pragma once

#include <list>

#include <boost\shared_ptr.hpp>

#include "entries\CGDBlink.h"
#include "entries\CGDFixation.h"
#include "entries\CGDSingleSample.h"

using namespace std;

template<class T>
class GDLIBAPI CGDQueue
{
private:
        unsigned int m_maxelements;
        list<T> m_elements;

public:
        CGDQueue(int maxLength):
          m_maxelements(maxLength), m_elements()
        {       }

        void clear()
        {
                if (m_elements.size() > 0)
                        m_elements.clear();
        }

        void add(T e)
        {
                while(m_elements.size() >= m_maxelements)
                        m_elements.pop_front();

                m_elements.push_back(e);
        }

        const T& get()
        {
                return m_elements.begin().get();
        }

        T& pop()
        {
                return m_elements.pop_front().get();
        }
};

typedef boost::shared_ptr<CGDQueue<CGDBlinkPtr>> CGDBlinksQueuePtr;
typedef boost::shared_ptr<CGDQueue<CGDFixationPtr>> CGDFixationsQueuePtr;
typedef boost::shared_ptr<CGDQueue<CGDSingleSamplePtr>> CGDSSampleQueuePtr;