diff options
Diffstat (limited to 'src/lib/event_history.cc')
| -rw-r--r-- | src/lib/event_history.cc | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/src/lib/event_history.cc b/src/lib/event_history.cc index efe80b243..fca88aaf1 100644 --- a/src/lib/event_history.cc +++ b/src/lib/event_history.cc @@ -1,5 +1,5 @@ /* - Copyright (C) 2017-2019 Carl Hetherington <cth@carlh.net> + Copyright (C) 2017-2021 Carl Hetherington <cth@carlh.net> This file is part of DCP-o-matic. @@ -18,24 +18,28 @@ */ + #include "event_history.h" #include "util.h" #include <boost/thread/mutex.hpp> + using boost::optional; + EventHistory::EventHistory (int size) : _size (size) { } + optional<float> EventHistory::rate () const { boost::mutex::scoped_lock lock (_mutex); - if (int (_history.size()) < _size) { - return optional<float>(); + if (int(_history.size()) < _size) { + return {}; } struct timeval now; @@ -44,6 +48,7 @@ EventHistory::rate () const return _size / (seconds (now) - seconds (_history.back ())); } + void EventHistory::event () { @@ -52,7 +57,7 @@ EventHistory::event () struct timeval tv; gettimeofday (&tv, 0); _history.push_front (tv); - if (int (_history.size()) > _size) { + if (int(_history.size()) > _size) { _history.pop_back (); } } |