/usr/include/ns3.27/ns3/aodv-id-cache.h is in libns3-dev 3.27+dfsg-1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 | /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/*
* Copyright (c) 2009 IITP RAS
*
* 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
*
* Based on
* NS-2 AODV model developed by the CMU/MONARCH group and optimized and
* tuned by Samir Das and Mahesh Marina, University of Cincinnati;
*
* AODV-UU implementation by Erik Nordström of Uppsala University
* http://core.it.uu.se/core/index.php/AODV-UU
*
* Authors: Elena Buchatskaia <borovkovaes@iitp.ru>
* Pavel Boyko <boyko@iitp.ru>
*/
#ifndef AODV_ID_CACHE_H
#define AODV_ID_CACHE_H
#include "ns3/ipv4-address.h"
#include "ns3/simulator.h"
#include <vector>
namespace ns3 {
namespace aodv {
/**
* \ingroup aodv
*
* \brief Unique packets identification cache used for simple duplicate detection.
*/
class IdCache
{
public:
/**
* constructor
* \param lifetime the lifetime for added entries
*/
IdCache (Time lifetime) : m_lifetime (lifetime)
{
}
/**
* Check that entry (addr, id) exists in cache. Add entry, if it doesn't exist.
* \param addr the IP address
* \param id the cache entry ID
* \returns true if the pair exists
*/
bool IsDuplicate (Ipv4Address addr, uint32_t id);
/// Remove all expired entries
void Purge ();
/**
* \returns number of entries in cache
*/
uint32_t GetSize ();
/**
* Set lifetime for future added entries.
* \param lifetime the lifetime for entries
*/
void SetLifetime (Time lifetime)
{
m_lifetime = lifetime;
}
/**
* Return lifetime for existing entries in cache
* \returns thhe lifetime
*/
Time GetLifeTime () const
{
return m_lifetime;
}
private:
/// Unique packet ID
struct UniqueId
{
/// ID is supposed to be unique in single address context (e.g. sender address)
Ipv4Address m_context;
/// The id
uint32_t m_id;
/// When record will expire
Time m_expire;
};
/**
* \brief IsExpired structure
*/
struct IsExpired
{
/**
* \brief Check if the entry is expired
*
* \param u UniqueId entry
* \return true if expired, false otherwise
*/
bool operator() (const struct UniqueId & u) const
{
return (u.m_expire < Simulator::Now ());
}
};
/// Already seen IDs
std::vector<UniqueId> m_idCache;
/// Default lifetime for ID records
Time m_lifetime;
};
} // namespace aodv
} // namespace ns3
#endif /* AODV_ID_CACHE_H */
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