comparison base/Scavenger.h @ 14:b101cc2ae1ab

* Introduce potentially-separate read and write ring buffers, so we can swap
  in a new set when something changes -- thus allowing us to respond quickly
  when something changes during playback, without losing the long buffers

* Some fixes for display & editing

 
     /**
      * Call from a non-RT thread.
      * Only one thread should be calling this on any given scavenger.
      */
-    void scavenge();
+    void scavenge(bool clearNow = false);
 
 protected:
     typedef std::pair<T *, int> ObjectTimePair;
     typedef std::vector<ObjectTimePair> ObjectTimeList;
     ObjectTimeList m_objects;

     }
 }
 
 template <typename T>
 void
-Scavenger<T>::scavenge()
+Scavenger<T>::scavenge(bool clearNow)
 {
 //    std::cerr << "Scavenger::scavenge: scavenged " << m_scavenged << ", claimed " << m_claimed << std::endl;
 
     if (m_scavenged >= m_claimed) return;
     

     (void)gettimeofday(&tv, 0);
     int sec = tv.tv_sec;
 
     for (size_t i = 0; i < m_objects.size(); ++i) {
 	ObjectTimePair &pair = m_objects[i];
-	if (pair.first != 0 && pair.second + m_sec < sec) {
+	if (clearNow ||
+	    (pair.first != 0 && pair.second + m_sec < sec)) {
 	    T *ot = pair.first;
 	    pair.first = 0;
 	    delete ot;
 	    ++m_scavenged;
 	}