db_error: convert to C++

src/DatabaseError.hxx

@@ -0,0 +1,47 @@
+/*
+ * 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_DB_ERROR_HXX
+#define MPD_DB_ERROR_HXX
+
+#include "gcc.h"
+
+#include <glib.h>
+
+enum db_error {
+	/**
+	 * The database is disabled, i.e. none is configured in this
+	 * MPD instance.
+	 */
+	DB_DISABLED,
+
+	DB_NOT_FOUND,
+};
+
+/**
+ * Quark for GError.domain; the code is an enum #db_error.
+ */
+gcc_const
+static inline GQuark
+db_quark(void)
+{
+	return g_quark_from_static_string("db");
+}
+
+#endif