config/Data: add method Clear()

Move code from config_global_finish().

Makefile.am

@@ -769,7 +769,7 @@ endif
 libconf_a_SOURCES = \
 	src/config/ConfigDefaults.hxx \
 	src/config/ConfigPath.cxx src/config/ConfigPath.hxx \
-	src/config/Data.hxx \
+	src/config/Data.cxx src/config/Data.hxx \
 	src/config/Block.cxx src/config/Block.hxx \
 	src/config/Param.cxx src/config/Param.hxx \
 	src/config/ConfigParser.cxx src/config/ConfigParser.hxx \

src/config/ConfigGlobal.cxx

@@ -37,9 +37,7 @@ static ConfigData config_data;
 
 void config_global_finish(void)
 {
-	for (auto i : config_data.params)
-		delete i;
-	config_data.params.fill(0);
+	config_data.Clear();
 }
 
 void config_global_init(void)

src/config/Data.cxx

@@ -0,0 +1,30 @@
+/*
+ * Copyright (C) 2003-2015 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 "Data.hxx"
+#include "Param.hxx"
+
+void
+ConfigData::Clear()
+{
+	for (auto i : params)
+		delete i;
+	params.fill(nullptr);
+}

src/config/Data.hxx

@@ -28,6 +28,8 @@ struct config_param;
 
 struct ConfigData {
 	std::array<config_param *, std::size_t(CONF_MAX)> params;
+
+	void Clear();
 };
 
 #endif