MutexedCounter.hpp

#ifndef BITES_MUTEXEDCOUNTER_HPP_INCLUDED
#define BITES_MUTEXEDCOUNTER_HPP_INCLUDED

#include <mutex>

namespace bites {

template <typename T>
class MutexedCounter
{
protected:
    static int incrCount ()
    {
        std::lock_guard <std::mutex> locker (m_lock);
        return ++m_count;
    }

    static int decrCount ()
    {
        std::lock_guard <std::mutex> locker (m_lock);
        return --m_count;
    }

private:
    static std::mutex m_lock;

    static int m_count;
};

template <typename T> std::mutex MutexedCounter<T>::m_lock;
template <typename T> int MutexedCounter<T>::m_count (0);

}  // namespace bites.

#endif  // BITES_MUTEXEDCOUNTER_HPP_INCLUDED