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/* -*- Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil -*- */
/*
* Copyright (c) 2011 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 _NDN_PIT_IMPL_H_
#define _NDN_PIT_IMPL_H_
#include "ndn-pit.h"
#include "../../utils/trie/trie-with-policy.h"
#include "ndn-pit-entry-impl.h"
#include "ns3/ndn-name.h"
namespace ns3 {
namespace ndn {
class ForwardingStrategy;
namespace pit {
/**
* \ingroup ndn
* \brief Class implementing Pending Interests Table
*/
template<class Policy>
class PitImpl : public Pit
, protected ndnSIM::trie_with_policy<Name,
ndnSIM::smart_pointer_payload_traits< EntryImpl< PitImpl< Policy > > >,
// ndnSIM::persistent_policy_traits
Policy
>
{
public:
typedef ndnSIM::trie_with_policy<Name,
ndnSIM::smart_pointer_payload_traits< EntryImpl< PitImpl< Policy > > >,
// ndnSIM::persistent_policy_traits
Policy
> super;
typedef EntryImpl< PitImpl< Policy > > entry;
/**
* \brief Interface ID
*
* \return interface ID
*/
static TypeId GetTypeId ();
/**
* \brief PIT constructor
*/
PitImpl ();
/**
* \brief Destructor
*/
virtual ~PitImpl ();
// inherited from Pit
virtual Ptr<Entry>
Lookup (const ContentObject &header);
virtual Ptr<Entry>
Lookup (const Interest &header);
virtual Ptr<Entry>
Find (const Name &prefix);
virtual Ptr<Entry>
Create (Ptr<const Interest> header);
virtual void
MarkErased (Ptr<Entry> entry);
virtual void
Print (std::ostream &os) const;
virtual uint32_t
GetSize () const;
virtual Ptr<Entry>
Begin ();
virtual Ptr<Entry>
End ();
virtual Ptr<Entry>
Next (Ptr<Entry>);
protected:
void RescheduleCleaning ();
void CleanExpired ();
// inherited from Object class
virtual void NotifyNewAggregate (); ///< @brief Even when object is aggregated to another Object
virtual void DoDispose (); ///< @brief Do cleanup
private:
uint32_t
GetMaxSize () const;
void
SetMaxSize (uint32_t maxSize);
uint32_t
GetCurrentSize () const;
private:
EventId m_cleanEvent;
Ptr<Fib> m_fib; ///< \brief Link to FIB table
Ptr<ForwardingStrategy> m_forwardingStrategy;
// indexes
typedef
boost::intrusive::multiset<entry,
boost::intrusive::compare < TimestampIndex< entry > >,
boost::intrusive::member_hook< entry,
boost::intrusive::set_member_hook<>,
&entry::time_hook_>
> time_index;
time_index i_time;
friend class EntryImpl< PitImpl >;
};
} // namespace pit
} // namespace ndn
} // namespace ns3
#endif /* NDN_PIT_IMPL_H */