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/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/**
* Copyright (c) 2011-2015 Regents of the University of California.
*
* This file is part of ndnSIM. See AUTHORS for complete list of ndnSIM authors and
* contributors.
*
* ndnSIM 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 3 of the License, or (at your option) any later version.
*
* ndnSIM 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
* ndnSIM, e.g., in COPYING.md file. If not, see <http://www.gnu.org/licenses/>.
**/
#ifndef FUNCTOR_HOOK_H_
#define FUNCTOR_HOOK_H_
/// @cond include_hidden
#include <boost/intrusive/parent_from_member.hpp>
namespace ns3 {
namespace ndn {
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
} // ndn
} // ns3
/// @endcond
#endif // FUNCTOR_HOOK_H_