Small reoraganization, cleaning 'use namespace' usages
diff --git a/utils/detail/functor-hook.h b/utils/detail/functor-hook.h
new file mode 100644
index 0000000..94b8b8f
--- /dev/null
+++ b/utils/detail/functor-hook.h
@@ -0,0 +1,68 @@
+/* -*- 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 FUNCTOR_HOOK_H_
+#define FUNCTOR_HOOK_H_
+
+#include <boost/intrusive/parent_from_member.hpp>
+
+namespace ndnSIM
+{
+namespace detail
+{
+
+template<class BaseHook, class ValueType, int N>
+struct FunctorHook
+{
+ typedef typename BaseHook::template index<N>::type hook_type;
+ typedef hook_type* hook_ptr;
+ typedef const hook_type* const_hook_ptr;
+
+ typedef ValueType value_type;
+ typedef value_type* pointer;
+ typedef const value_type* const_pointer;
+
+ //Required static functions
+ static hook_ptr to_hook_ptr (value_type &value)
+ { return &value.policy_hook_.template get<N> (); }
+
+ static const_hook_ptr to_hook_ptr(const value_type &value)
+ { return &value.policy_hook_.template get<N> (); }
+
+ static pointer to_value_ptr(hook_ptr n)
+ {
+ return
+ boost::intrusive::get_parent_from_member<value_type>
+ (static_cast<BaseHook*> (boost::intrusive::get_parent_from_member< wrap<hook_type> >(n, &wrap<hook_type>::value_)),
+ &value_type::policy_hook_);
+ }
+ static const_pointer to_value_ptr(const_hook_ptr n)
+ {
+ return
+ boost::intrusive::get_parent_from_member<value_type>
+ (static_cast<const BaseHook*> (boost::intrusive::get_parent_from_member< wrap<hook_type> >(n, &wrap<hook_type>::value_)),
+ &value_type::policy_hook_);
+ }
+};
+
+} // detail
+} // ndnSIM
+
+#endif // FUNCTOR_HOOK_H_