notify: convert to C++

src/notify.cxx

@@ -0,0 +1,45 @@
+/*
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program 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.
+ *
+ * This program 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 this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "config.h"
+#include "notify.hxx"
+
+void
+notify::Wait()
+{
+	const ScopeLock protect(mutex);
+	while (!pending)
+		cond.wait(mutex);
+	pending = false;
+}
+
+void
+notify::Signal()
+{
+	const ScopeLock protect(mutex);
+	pending = true;
+	cond.signal();
+}
+
+void
+notify::Clear()
+{
+	const ScopeLock protect(mutex);
+	pending = false;
+}