Dogcows Code - chaz/openbox/blob - otk/timerqueue.hh

   1 // -*- mode: C++; indent-tabs-mode: nil; -*-
   2 #ifndef __timerqueue_hh
   3 #define __timerqueue_hh
   4
   5 #ifndef   DOXYGEN_IGNORE
   6
   7 #include "timer.hh"
   8
   9 #include <queue>
  10 #include <vector>
  11 #include <algorithm>
  12
  13 namespace otk {
  14
  15 template <class _Tp, class _Sequence, class _Compare>
  16 class _timer_queue: protected std::priority_queue<_Tp, _Sequence, _Compare> {
  17 public:
  18   typedef std::priority_queue<_Tp, _Sequence, _Compare> _Base;
  19
  20   _timer_queue(): _Base() {}
  21   ~_timer_queue() {}
  22
  23   void release(const _Tp& value) {
  24     c.erase(std::remove(c.begin(), c.end(), value), c.end());
  25     // after removing the item we need to make the heap again
  26     std::make_heap(c.begin(), c.end(), comp);
  27   }
  28   bool empty() const { return _Base::empty(); }
  29   size_t size() const { return _Base::size(); }
  30   void push(const _Tp& value) { _Base::push(value); }
  31   void pop() { _Base::pop(); }
  32   const _Tp& top() const { return _Base::top(); }
  33 private:
  34   // no copying!
  35   _timer_queue(const _timer_queue&) {}
  36   _timer_queue& operator=(const _timer_queue&) {}
  37 };
  38
  39 struct TimerLessThan {
  40   bool operator()(const OBTimer* const l, const OBTimer* const r) const {
  41     return *r < *l;
  42   }
  43 };
  44
  45 typedef _timer_queue<OBTimer*,
  46                      std::vector<OBTimer*>, TimerLessThan> TimerQueue;
  47
  48 }
  49
  50 #endif // DOXYGEN_IGNORE
  51
  52 #endif // __timerqueue_hh