A Discrete-Event Network Simulator
API
aodv-id-cache.h
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1/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
2/*
3 * Copyright (c) 2009 IITP RAS
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License version 2 as
7 * published by the Free Software Foundation;
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17 *
18 * Based on
19 * NS-2 AODV model developed by the CMU/MONARCH group and optimized and
20 * tuned by Samir Das and Mahesh Marina, University of Cincinnati;
21 *
22 * AODV-UU implementation by Erik Nordström of Uppsala University
23 * https://web.archive.org/web/20100527072022/http://core.it.uu.se/core/index.php/AODV-UU
24 *
25 * Authors: Elena Buchatskaia <borovkovaes@iitp.ru>
26 * Pavel Boyko <boyko@iitp.ru>
27 */
28
29#ifndef AODV_ID_CACHE_H
30#define AODV_ID_CACHE_H
31
32#include "ns3/ipv4-address.h"
33#include "ns3/simulator.h"
34#include <vector>
35
36namespace ns3 {
37namespace aodv {
44{
45public:
50 IdCache (Time lifetime) : m_lifetime (lifetime)
51 {
52 }
59 bool IsDuplicate (Ipv4Address addr, uint32_t id);
61 void Purge ();
70 void SetLifetime (Time lifetime)
71 {
72 m_lifetime = lifetime;
73 }
79 {
80 return m_lifetime;
81 }
82private:
84 struct UniqueId
85 {
92 };
96 struct IsExpired
97 {
104 bool operator() (const struct UniqueId & u) const
105 {
106 return (u.m_expire < Simulator::Now ());
107 }
108 };
110 std::vector<UniqueId> m_idCache;
113};
114
115} // namespace aodv
116} // namespace ns3
117
118#endif /* AODV_ID_CACHE_H */
Ipv4 addresses are stored in host order in this class.
Definition: ipv4-address.h:41
static Time Now(void)
Return the current simulation virtual time.
Definition: simulator.cc:195
Simulation virtual time values and global simulation resolution.
Definition: nstime.h:104
Unique packets identification cache used for simple duplicate detection.
Definition: aodv-id-cache.h:44
std::vector< UniqueId > m_idCache
Already seen IDs.
void Purge()
Remove all expired entries.
void SetLifetime(Time lifetime)
Set lifetime for future added entries.
Definition: aodv-id-cache.h:70
Time m_lifetime
Default lifetime for ID records.
Time GetLifeTime() const
Return lifetime for existing entries in cache.
Definition: aodv-id-cache.h:78
bool IsDuplicate(Ipv4Address addr, uint32_t id)
Check that entry (addr, id) exists in cache.
IdCache(Time lifetime)
constructor
Definition: aodv-id-cache.h:50
Every class exported by the ns3 library is enclosed in the ns3 namespace.
IsExpired structure.
Definition: aodv-id-cache.h:97
bool operator()(const struct UniqueId &u) const
Check if the entry is expired.
Time m_expire
When record will expire.
Definition: aodv-id-cache.h:91
Ipv4Address m_context
ID is supposed to be unique in single address context (e.g. sender address)
Definition: aodv-id-cache.h:87