swaroop: only allow playback if configured lock file is present.

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

diff --git a/src/lib/lock_file_checker.cc b/src/lib/lock_file_checker.cc
new file mode 100644 (file)
index 0000000..9543c2c
--- /dev/null
+++ b/src/lib/lock_file_checker.cc
@@ -0,0 +1,54 @@
+/*
+    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/>.
+
+*/
+
+#ifdef DCPOMATIC_VARIANT_SWAROOP
+
+#include "lock_file_checker.h"
+#include "config.h"
+#include "cross.h"
+
+using boost::bind;
+using boost::ref;
+
+LockFileChecker* LockFileChecker::_instance = 0;
+
+LockFileChecker::LockFileChecker ()
+       : Checker (10)
+{
+
+}
+
+bool
+LockFileChecker::check () const
+{
+       return !Config::instance()->player_lock_file() || boost::filesystem::is_regular_file(Config::instance()->player_lock_file().get());
+}
+
+LockFileChecker *
+LockFileChecker::instance ()
+{
+       if (!_instance) {
+               _instance = new LockFileChecker ();
+       }
+
+       return _instance;
+}
+
+#endif