Missing files.

[dcpomatic.git] / src / lib / text_ring_buffers.cc

diff --git a/src/lib/text_ring_buffers.cc b/src/lib/text_ring_buffers.cc
new file mode 100644 (file)
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+++ b/src/lib/text_ring_buffers.cc
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+/*
+    Copyright (C) 2018 Carl Hetherington <cth@carlh.net>
+
+    This file is part of DCP-o-matic.
+
+    DCP-o-matic is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    DCP-o-matic is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with DCP-o-matic.  If not, see <http://www.gnu.org/licenses/>.
+
+*/
+
+#include "text_ring_buffers.h"
+
+using std::pair;
+using boost::optional;
+
+void
+TextRingBuffers::put (pair<PlayerText, DCPTimePeriod> text)
+{
+       boost::mutex::scoped_lock lm (_mutex);
+       _data.push_back (text);
+}
+
+optional<pair<PlayerText, DCPTimePeriod> >
+TextRingBuffers::get ()
+{
+       boost::mutex::scoped_lock lm (_mutex);
+       if (_data.empty ()) {
+               return pair<PlayerText, DCPTimePeriod>();
+       }
+
+       pair<PlayerText, DCPTimePeriod> r = _data.front ();
+       _data.pop_front ();
+       return r;
+}
+
+void
+TextRingBuffers::clear ()
+{
+       _data.clear ();
+}