/** Mutex for _time_history, _just_skipped and _last_frame */
mutable boost::mutex _history_mutex;
+ /** List of the times of completion of the last _history_size frames;
+ first is the most recently completed.
+ */
std::list<struct timeval> _time_history;
+ /** Number of frames that we should keep history for */
static int const _history_size;
/** true if the last frame we processed was skipped (because it was already done) */
bool _just_skipped;
+ /** Index of the last frame to be processed */
int _last_frame;
};