/**
 * A mixin to give any class a timeout method that can be used by
 * Timer().
 */
class Timer_Mixin
{
public:
	virtual ~Timer_Mixin() {};
	virtual void on_timeout() = 0;
};

/**
 * Timer class.
 */
class Timer
{
public:
	Timer(Timer_Mixin &m);
	~Timer();

	void schedule(struct timeval *tv);
};