Small reoraganization, cleaning 'use namespace' usages
diff --git a/utils/multi-policy.h b/utils/multi-policy.h
new file mode 100644
index 0000000..fd126ae
--- /dev/null
+++ b/utils/multi-policy.h
@@ -0,0 +1,124 @@
+/* -*- Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * Copyright (c) 2012 University of California, Los Angeles
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation;
+ *
+ * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Author: Alexander Afanasyev <alexander.afanasyev@ucla.edu>
+ */
+
+#ifndef MULTI_POLICY_H_
+#define MULTI_POLICY_H_
+
+#include "detail/multi-type-container.h"
+#include "detail/multi-policy-container.h"
+#include "detail/functor-hook.h"
+
+#include <boost/mpl/size.hpp>
+#include <boost/mpl/at.hpp>
+#include <boost/mpl/range_c.hpp>
+#include <boost/mpl/transform.hpp>
+#include <boost/mpl/back_inserter.hpp>
+#include <boost/mpl/vector.hpp>
+
+#include <boost/intrusive/options.hpp>
+
+namespace ndnSIM
+{
+
+template<typename Policies> // e.g., mpl::vector1< lru_policy_traits >
+struct multi_policy_traits
+{
+ typedef Policies policy_traits;
+
+ struct getHook { template<class Item> struct apply { typedef typename Item::policy_hook_type type; }; };
+ typedef detail::multi_type_container< typename boost::mpl::transform1<policy_traits, getHook>::type > policy_hook_type;
+
+ template<class Container>
+ struct container_hook
+ {
+ typedef policy_hook_type type;
+ };
+
+ template<class Base,
+ class Container,
+ class Hook>
+ struct policy
+ {
+ typedef boost::mpl::range_c<int, 0, boost::mpl::size<policy_traits>::type::value> policies_range;
+
+ struct getPolicy
+ {
+ template<class Number>
+ struct apply
+ {
+ typedef
+ typename boost::mpl::at_c<policy_traits, Number::value>::type::
+ template policy<Base,
+ Container,
+ boost::intrusive::function_hook< detail::FunctorHook <Hook,
+ Container,
+ Number::value> > >::type
+ type;
+ };
+ };
+
+ typedef
+ typename boost::mpl::transform1<policies_range,
+ getPolicy,
+ boost::mpl::back_inserter< boost::mpl::vector0<> > >::type policies;
+
+
+ typedef detail::multi_policy_container< Base, policies > policy_container;
+
+ class type : public policy_container
+ {
+ public:
+ typedef Container parent_trie;
+
+ type (Base &base)
+ : policy_container (base)
+ {
+ }
+
+ inline void
+ update (typename parent_trie::iterator item)
+ {
+ policy_container::update (item);
+ }
+
+ inline bool
+ insert (typename parent_trie::iterator item)
+ {
+ return policy_container::insert (item);
+ }
+
+ inline void
+ lookup (typename parent_trie::iterator item)
+ {
+ policy_container::lookup (item);
+ }
+
+ inline void
+ erase (typename parent_trie::iterator item)
+ {
+ policy_container::erase (item);
+ }
+ };
+ };
+};
+
+} // ndnSIM
+
+#endif // MULTI_POLICY_H_