[ns] Recurring Timer Events

[Larry Brigman]

I have the following code:

class queue;

class queueStats : public TimerHandler {
public:
        inline queueStats(Kqueue *q) : TimerHandler() { q_ = q; }
private:
        virtual void expire(Event *);
        queue* q_;
};

void
queueStats::expire(Event*)
{
        q_->collectStats();
        resched(q_->restatTime());
}

class queue : public Queue
{
  public:
          queue();
   void collectStats();
 protected:
    queueStats *qs_;
}

queue::queue() : qs_(this)
{
    qs->resched(STATS_COLLECT_TIME);
}


Now, my problem is two fold.  Is this the correct way to setup a
recurring timer?
When I do it this way,  The expire event gets called twice for each
event which my
code cannot handle at present.  Why would the code get called twice?  Do I need
to set the event to some state prior to rescheduling it?