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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_ENTRY_OUTGOING_FACE_H_
#define _NDN_PIT_ENTRY_OUTGOING_FACE_H_
#include "ns3/nstime.h"
#include "ns3/ptr.h"
#include "ns3/ndn-face.h"
namespace ns3 {
namespace ndn {
namespace pit {
/**
* @ingroup ndn-pit
* @brief PIT state component for each outgoing interest
*/
struct OutgoingFace
{
Ptr<Face> m_face; ///< \brief face of the outgoing Interest
Time m_sendTime; ///< \brief time when the first outgoing interest is sent (for RTT measurements)
///< \todo handle problem of retransmitted interests... Probably, we should include something similar
///< to TimeStamp TCP option for retransmitted (i.e., only lost interests will suffer)
uint32_t m_retxCount; ///< \brief number of retransmission
bool m_waitingInVain; ///< \brief when flag is set, we do not expect data for this interest, only a small hope that it will happen
public:
/**
* @brief Constructor to create PitEntryOutgoingFace
* \param face face of the outgoing interest
*/
OutgoingFace (Ptr<Face> face);
/**
* @brief Default constructor, necessary for Python bindings, but should not be used anywhere else.
*/
OutgoingFace ();
/**
* @brief Copy operator
*/
OutgoingFace &
operator = (const OutgoingFace &other);
/**
* @brief Update outgoing entry upon retransmission
*/
void
UpdateOnRetransmit ();
/**
* @brief Compare to PitEntryOutgoingFace
*/
bool operator== (const OutgoingFace &dst) { return *m_face==*dst.m_face; }
/**
* @brief Compare PitEntryOutgoingFace with Face
*/
bool operator== (Ptr<Face> face) { return *m_face==*face; }
/**
* \brief Comparison operator used by boost::multi_index::identity<>
*/
bool
operator< (const OutgoingFace &m) const { return *m_face < *(m.m_face); } // return identity of the face
};
} // namespace pit
} // namespace ndn
} // namespace ns3
#endif /* NDN_PIT_ENTRY_OUTGOING_FACE_H */