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diff --git a/src/Stats.hxx b/src/Stats.hxx
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+/*
+ * 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.
+ */
+
+#ifndef MPD_STATS_HXX
+#define MPD_STATS_HXX
+
+#include <glib.h>
+
+class Client;
+
+struct stats {
+	GTimer *timer;
+
+	/** number of song files in the music directory */
+	unsigned song_count;
+
+	/** sum of all song durations in the music directory (in
+	    seconds) */
+	unsigned long song_duration;
+
+	/** number of distinct artist names in the music directory */
+	unsigned artist_count;
+
+	/** number of distinct album names in the music directory */
+	unsigned album_count;
+};
+
+extern struct stats stats;
+
+void stats_global_init(void);
+
+void stats_global_finish(void);
+
+void stats_update(void);
+
+void
+stats_print(Client *client);
+
+#endif