-
-template <class _Tp, class _Sequence, class _Compare>
-class _timer_queue: protected std::priority_queue<_Tp, _Sequence, _Compare> {
-public:
- typedef std::priority_queue<_Tp, _Sequence, _Compare> _Base;
-
- _timer_queue(): _Base() {}
- ~_timer_queue() {}
-
- void release(const _Tp& value) {
- c.erase(std::remove(c.begin(), c.end(), value), c.end());
- // after removing the item we need to make the heap again
- std::make_heap(c.begin(), c.end(), comp);
- }
- bool empty() const { return _Base::empty(); }
- size_t size() const { return _Base::size(); }
- void push(const _Tp& value) { _Base::push(value); }
- void pop() { _Base::pop(); }
- const _Tp& top() const { return _Base::top(); }
-private:
- // no copying!
- _timer_queue(const _timer_queue&) {}
- _timer_queue& operator=(const _timer_queue&) {}
-};
-
-struct TimerLessThan {
- bool operator()(const OBTimer* const l, const OBTimer* const r) const {
- return *r < *l;
- }
-};
-
-typedef _timer_queue<OBTimer*,
- std::vector<OBTimer*>, TimerLessThan> TimerQueue;
-
-//! Manages a queue of OBTimer objects
-/*!
- All OBTimer objects add themself to an OBTimerQueueManager. The manager is
- what fires the timers when their time has elapsed. This is done by having the
- application call the OBTimerQueueManager::fire class in its main event loop.
-*/
-class OBTimerQueueManager {
-private:
- //! A priority queue of all timers being managed by this class.
- TimerQueue timerList;
-public:
- //! Constructs a new OBTimerQueueManager
- OBTimerQueueManager() {}
- //! Destroys the OBTimerQueueManager
- virtual ~OBTimerQueueManager() {}
-
- //! Will wait for and fire the next timer in the queue.
- /*!
- The function will stop waiting if an event is received from the X server.
- */
- virtual void fire();
-
- //! Adds a new timer to the queue
- /*!
- @param timer An OBTimer to add to the queue
- */
- virtual void addTimer(OBTimer* timer);
- //! Removes a timer from the queue
- /*!
- @param timer An OBTimer already in the queue to remove
- */
- virtual void removeTimer(OBTimer* timer);
-};
-