A Discrete-Event Network Simulator
API
aodv-id-cache.cc
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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#include "aodv-id-cache.h"
29#include <algorithm>
30
31namespace ns3 {
32namespace aodv {
33bool
35{
36 Purge ();
37 for (std::vector<UniqueId>::const_iterator i = m_idCache.begin ();
38 i != m_idCache.end (); ++i)
39 {
40 if (i->m_context == addr && i->m_id == id)
41 {
42 return true;
43 }
44 }
45 struct UniqueId uniqueId =
46 {
47 addr, id, m_lifetime + Simulator::Now ()
48 };
49 m_idCache.push_back (uniqueId);
50 return false;
51}
52void
54{
55 m_idCache.erase (remove_if (m_idCache.begin (), m_idCache.end (),
56 IsExpired ()), m_idCache.end ());
57}
58
61{
62 Purge ();
63 return m_idCache.size ();
64}
65
66}
67}
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
std::vector< UniqueId > m_idCache
Already seen IDs.
void Purge()
Remove all expired entries.
Time m_lifetime
Default lifetime for ID records.
bool IsDuplicate(Ipv4Address addr, uint32_t id)
Check that entry (addr, id) exists in cache.
Every class exported by the ns3 library is enclosed in the ns3 namespace.
IsExpired structure.
Definition: aodv-id-cache.h:97