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Ilya Moiseenko8196d2e2011-08-29 13:03:22 -07001/* -*- Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */
2/*
3 * Copyright (c) 2011 University of California, Los Angeles
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 * Author: Ilya Moiseenko <iliamo@cs.ucla.edu>
19 */
20
Alexander Afanasyev4aac5572012-08-09 10:49:55 -070021#include "ndn-consumer.h"
Alexander Afanasyevc5a23e22011-09-07 00:37:36 -070022#include "ns3/ptr.h"
Alexander Afanasyev19426ef2011-11-23 20:55:28 -080023#include "ns3/log.h"
24#include "ns3/simulator.h"
25#include "ns3/packet.h"
Alexander Afanasyevc5a23e22011-09-07 00:37:36 -070026#include "ns3/callback.h"
Alexander Afanasyeva46844b2011-11-21 19:13:26 -080027#include "ns3/string.h"
Alexander Afanasyev19426ef2011-11-23 20:55:28 -080028#include "ns3/boolean.h"
29#include "ns3/uinteger.h"
Alexander Afanasyevb3e4b852011-12-23 15:58:20 -080030#include "ns3/double.h"
Alexander Afanasyev19426ef2011-11-23 20:55:28 -080031
Alexander Afanasyev4aac5572012-08-09 10:49:55 -070032#include "ns3/ndn-app-face.h"
33#include "ns3/ndn-interest-header.h"
34#include "ns3/ndn-content-object-header.h"
Alexander Afanasyevde7601a2012-05-31 12:14:54 -070035// #include "ns3/weights-path-stretch-tag.h"
Ilya Moiseenko8196d2e2011-08-29 13:03:22 -070036
Alexander Afanasyev19426ef2011-11-23 20:55:28 -080037#include <boost/ref.hpp>
Alexander Afanasyev781ea812011-12-15 22:42:09 -080038#include <boost/lexical_cast.hpp>
39#include <boost/lambda/lambda.hpp>
40#include <boost/lambda/bind.hpp>
41
Alexander Afanasyev3661e232012-01-20 17:36:15 -080042#include "ns3/names.h"
43
Alexander Afanasyev781ea812011-12-15 22:42:09 -080044namespace ll = boost::lambda;
Alexander Afanasyev19426ef2011-11-23 20:55:28 -080045
Alexander Afanasyev2b4c9472012-08-09 15:00:38 -070046NS_LOG_COMPONENT_DEFINE ("ndn.Consumer");
Ilya Moiseenko8196d2e2011-08-29 13:03:22 -070047
Alexander Afanasyev2b4c9472012-08-09 15:00:38 -070048namespace ns3 {
49namespace ndn {
Ilya Moiseenko8196d2e2011-08-29 13:03:22 -070050
Alexander Afanasyev2b4c9472012-08-09 15:00:38 -070051NS_OBJECT_ENSURE_REGISTERED (Consumer);
Ilya Moiseenko8196d2e2011-08-29 13:03:22 -070052
53TypeId
Alexander Afanasyev2b4c9472012-08-09 15:00:38 -070054Consumer::GetTypeId (void)
Ilya Moiseenko8196d2e2011-08-29 13:03:22 -070055{
Alexander Afanasyev2b4c9472012-08-09 15:00:38 -070056 static TypeId tid = TypeId ("ns3::ndn::Consumer")
Alexander Afanasyev4aac5572012-08-09 10:49:55 -070057 .SetGroupName ("Ndn")
Alexander Afanasyev2b4c9472012-08-09 15:00:38 -070058 .SetParent<App> ()
Alexander Afanasyev781ea812011-12-15 22:42:09 -080059 .AddAttribute ("StartSeq", "Initial sequence number",
Alexander Afanasyevb3e4b852011-12-23 15:58:20 -080060 IntegerValue (0),
Alexander Afanasyev2b4c9472012-08-09 15:00:38 -070061 MakeIntegerAccessor(&Consumer::m_seq),
Alexander Afanasyev781ea812011-12-15 22:42:09 -080062 MakeIntegerChecker<int32_t>())
Alexander Afanasyev011b8592011-12-21 14:45:27 -080063
Alexander Afanasyev2b4c9472012-08-09 15:00:38 -070064 .AddAttribute ("Prefix","Name of the Interest",
Alexander Afanasyev09c7deb2011-11-23 14:50:10 -080065 StringValue ("/"),
Alexander Afanasyev2b4c9472012-08-09 15:00:38 -070066 MakeNameComponentsAccessor (&Consumer::m_interestName),
67 MakeNameComponentsChecker ())
Ilya Moiseenko956d0542012-01-02 15:26:40 -080068 .AddAttribute ("LifeTime", "LifeTime for interest packet",
Alexander Afanasyev09c7deb2011-11-23 14:50:10 -080069 StringValue ("2s"),
Alexander Afanasyev2b4c9472012-08-09 15:00:38 -070070 MakeTimeAccessor (&Consumer::m_interestLifeTime),
Alexander Afanasyev09c7deb2011-11-23 14:50:10 -080071 MakeTimeChecker ())
Alexander Afanasyev781ea812011-12-15 22:42:09 -080072
Alexander Afanasyev781ea812011-12-15 22:42:09 -080073 .AddAttribute ("RetxTimer",
74 "Timeout defining how frequent retransmission timeouts should be checked",
Alexander Afanasyev3d0c2e02012-01-22 18:50:05 -080075 StringValue ("50ms"),
Alexander Afanasyev2b4c9472012-08-09 15:00:38 -070076 MakeTimeAccessor (&Consumer::GetRetxTimer, &Consumer::SetRetxTimer),
Alexander Afanasyev781ea812011-12-15 22:42:09 -080077 MakeTimeChecker ())
78
Alexander Afanasyev6bff0df2012-01-19 17:51:52 -080079 .AddTraceSource ("PathWeightsTrace", "PathWeightsTrace",
Alexander Afanasyev2b4c9472012-08-09 15:00:38 -070080 MakeTraceSourceAccessor (&Consumer::m_pathWeightsTrace))
Alexander Afanasyev09c7deb2011-11-23 14:50:10 -080081 ;
Ilya Moiseenko8196d2e2011-08-29 13:03:22 -070082
Alexander Afanasyev09c7deb2011-11-23 14:50:10 -080083 return tid;
Ilya Moiseenko8196d2e2011-08-29 13:03:22 -070084}
85
Alexander Afanasyev2b4c9472012-08-09 15:00:38 -070086Consumer::Consumer ()
Alexander Afanasyev09c7deb2011-11-23 14:50:10 -080087 : m_rand (0, std::numeric_limits<uint32_t>::max ())
88 , m_seq (0)
Alexander Afanasyevb7ad2322012-01-17 22:54:49 -080089 , m_seqMax (0) // don't request anything
Ilya Moiseenko8196d2e2011-08-29 13:03:22 -070090{
Alexander Afanasyev09c7deb2011-11-23 14:50:10 -080091 NS_LOG_FUNCTION_NOARGS ();
Alexander Afanasyev011b8592011-12-21 14:45:27 -080092
Alexander Afanasyev94cebd02012-01-16 12:22:34 -080093 m_rtt = CreateObject<RttMeanDeviation> ();
Ilya Moiseenko8196d2e2011-08-29 13:03:22 -070094}
Alexander Afanasyev781ea812011-12-15 22:42:09 -080095
96void
Alexander Afanasyev2b4c9472012-08-09 15:00:38 -070097Consumer::SetRetxTimer (Time retxTimer)
Alexander Afanasyev781ea812011-12-15 22:42:09 -080098{
99 m_retxTimer = retxTimer;
100 if (m_retxEvent.IsRunning ())
Alexander Afanasyevb18ae022012-09-03 21:46:36 -0700101 {
102 // m_retxEvent.Cancel (); // cancel any scheduled cleanup events
103 Simulator::Remove (m_retxEvent); // slower, but better for memory
104 }
Alexander Afanasyev781ea812011-12-15 22:42:09 -0800105
106 // schedule even with new timeout
107 m_retxEvent = Simulator::Schedule (m_retxTimer,
Alexander Afanasyev2b4c9472012-08-09 15:00:38 -0700108 &Consumer::CheckRetxTimeout, this);
Alexander Afanasyev781ea812011-12-15 22:42:09 -0800109}
110
111Time
Alexander Afanasyev2b4c9472012-08-09 15:00:38 -0700112Consumer::GetRetxTimer () const
Alexander Afanasyev781ea812011-12-15 22:42:09 -0800113{
114 return m_retxTimer;
115}
116
117void
Alexander Afanasyev2b4c9472012-08-09 15:00:38 -0700118Consumer::CheckRetxTimeout ()
Alexander Afanasyev781ea812011-12-15 22:42:09 -0800119{
120 Time now = Simulator::Now ();
121
Alexander Afanasyev359bfb72012-01-09 18:42:50 -0800122 Time rto = m_rtt->RetransmitTimeout ();
Alexander Afanasyevbdc0d982011-12-16 01:15:26 -0800123
Alexander Afanasyev781ea812011-12-15 22:42:09 -0800124 while (!m_seqTimeouts.empty ())
125 {
126 SeqTimeoutsContainer::index<i_timestamp>::type::iterator entry =
127 m_seqTimeouts.get<i_timestamp> ().begin ();
Alexander Afanasyev359bfb72012-01-09 18:42:50 -0800128 if (entry->time + rto <= now) // timeout expired?
Alexander Afanasyev781ea812011-12-15 22:42:09 -0800129 {
Alexander Afanasyeve0e5bd12012-01-21 14:30:52 -0800130 uint32_t seqNo = entry->seq;
Alexander Afanasyev359bfb72012-01-09 18:42:50 -0800131 m_seqTimeouts.get<i_timestamp> ().erase (entry);
Alexander Afanasyeve0e5bd12012-01-21 14:30:52 -0800132 OnTimeout (seqNo);
Alexander Afanasyev781ea812011-12-15 22:42:09 -0800133 }
134 else
135 break; // nothing else to do. All later packets need not be retransmitted
136 }
Alexander Afanasyev3183b5a2011-12-23 20:48:20 -0800137
Alexander Afanasyev781ea812011-12-15 22:42:09 -0800138 m_retxEvent = Simulator::Schedule (m_retxTimer,
Alexander Afanasyev2b4c9472012-08-09 15:00:38 -0700139 &Consumer::CheckRetxTimeout, this);
Alexander Afanasyev781ea812011-12-15 22:42:09 -0800140}
141
Ilya Moiseenko8196d2e2011-08-29 13:03:22 -0700142// Application Methods
143void
Alexander Afanasyev2b4c9472012-08-09 15:00:38 -0700144Consumer::StartApplication () // Called at time specified by Start
Ilya Moiseenko8196d2e2011-08-29 13:03:22 -0700145{
Alexander Afanasyev09c7deb2011-11-23 14:50:10 -0800146 NS_LOG_FUNCTION_NOARGS ();
Alexander Afanasyevc5a23e22011-09-07 00:37:36 -0700147
Alexander Afanasyev09c7deb2011-11-23 14:50:10 -0800148 // do base stuff
Alexander Afanasyev2b4c9472012-08-09 15:00:38 -0700149 App::StartApplication ();
Alexander Afanasyev011b8592011-12-21 14:45:27 -0800150
151 ScheduleNextPacket ();
Ilya Moiseenko8196d2e2011-08-29 13:03:22 -0700152}
153
154void
Alexander Afanasyev2b4c9472012-08-09 15:00:38 -0700155Consumer::StopApplication () // Called at time specified by Stop
Ilya Moiseenko8196d2e2011-08-29 13:03:22 -0700156{
Alexander Afanasyev09c7deb2011-11-23 14:50:10 -0800157 NS_LOG_FUNCTION_NOARGS ();
Alexander Afanasyevc5a23e22011-09-07 00:37:36 -0700158
Alexander Afanasyev09c7deb2011-11-23 14:50:10 -0800159 // cancel periodic packet generation
160 Simulator::Cancel (m_sendEvent);
Alexander Afanasyevc5a23e22011-09-07 00:37:36 -0700161
Alexander Afanasyev09c7deb2011-11-23 14:50:10 -0800162 // cleanup base stuff
Alexander Afanasyev2b4c9472012-08-09 15:00:38 -0700163 App::StopApplication ();
Ilya Moiseenko8196d2e2011-08-29 13:03:22 -0700164}
165
Ilya Moiseenko8196d2e2011-08-29 13:03:22 -0700166void
Alexander Afanasyev2b4c9472012-08-09 15:00:38 -0700167Consumer::SendPacket ()
Ilya Moiseenko8196d2e2011-08-29 13:03:22 -0700168{
Alexander Afanasyev3183b5a2011-12-23 20:48:20 -0800169 if (!m_active) return;
170
Alexander Afanasyev09c7deb2011-11-23 14:50:10 -0800171 NS_LOG_FUNCTION_NOARGS ();
Alexander Afanasyev781ea812011-12-15 22:42:09 -0800172
Alexander Afanasyev1ec705f2012-01-23 12:35:10 -0800173 uint32_t seq=std::numeric_limits<uint32_t>::max (); //invalid
174
Alexander Afanasyev1180b042012-01-25 19:26:13 -0800175 // std::cout << Simulator::Now ().ToDouble (Time::S) << "s max -> " << m_seqMax << "\n";
Alexander Afanasyev781ea812011-12-15 22:42:09 -0800176
Alexander Afanasyev1ec705f2012-01-23 12:35:10 -0800177 while (m_retxSeqs.size ())
Alexander Afanasyev781ea812011-12-15 22:42:09 -0800178 {
179 seq = *m_retxSeqs.begin ();
180 m_retxSeqs.erase (m_retxSeqs.begin ());
Alexander Afanasyev1ec705f2012-01-23 12:35:10 -0800181
182 // NS_ASSERT (m_seqLifetimes.find (seq) != m_seqLifetimes.end ());
183 // if (m_seqLifetimes.find (seq)->time <= Simulator::Now ())
184 // {
185
186 // NS_LOG_DEBUG ("Expire " << seq);
187 // m_seqLifetimes.erase (seq); // lifetime expired. Trying to find another unexpired sequence number
188 // continue;
189 // }
190 break;
Alexander Afanasyev781ea812011-12-15 22:42:09 -0800191 }
Alexander Afanasyev1ec705f2012-01-23 12:35:10 -0800192
193 if (seq == std::numeric_limits<uint32_t>::max ())
Alexander Afanasyevb3e4b852011-12-23 15:58:20 -0800194 {
Alexander Afanasyev812f7ab2012-01-24 11:08:04 -0800195 if (m_seqMax != std::numeric_limits<uint32_t>::max ())
Alexander Afanasyevb3e4b852011-12-23 15:58:20 -0800196 {
197 if (m_seq >= m_seqMax)
198 {
Alexander Afanasyev3183b5a2011-12-23 20:48:20 -0800199 return; // we are totally done
Alexander Afanasyevb3e4b852011-12-23 15:58:20 -0800200 }
201 }
202
203 seq = m_seq++;
204 }
Alexander Afanasyev781ea812011-12-15 22:42:09 -0800205
Alexander Afanasyev359bfb72012-01-09 18:42:50 -0800206 // std::cout << Simulator::Now ().ToDouble (Time::S) << "s -> " << seq << "\n";
Ilya Moiseenko0605d262011-10-28 13:00:07 -0700207
Alexander Afanasyev09c7deb2011-11-23 14:50:10 -0800208 //
Alexander Afanasyev2b4c9472012-08-09 15:00:38 -0700209 Ptr<NameComponents> nameWithSequence = Create<NameComponents> (m_interestName);
Alexander Afanasyev781ea812011-12-15 22:42:09 -0800210 (*nameWithSequence) (seq);
Alexander Afanasyev09c7deb2011-11-23 14:50:10 -0800211 //
212
Alexander Afanasyev2b4c9472012-08-09 15:00:38 -0700213 InterestHeader interestHeader;
Alexander Afanasyev09c7deb2011-11-23 14:50:10 -0800214 interestHeader.SetNonce (m_rand.GetValue ());
215 interestHeader.SetName (nameWithSequence);
Ilya Moiseenko8196d2e2011-08-29 13:03:22 -0700216
Alexander Afanasyev781ea812011-12-15 22:42:09 -0800217 // NS_LOG_INFO ("Requesting Interest: \n" << interestHeader);
218 NS_LOG_INFO ("> Interest for " << seq);
Alexander Afanasyevc5a23e22011-09-07 00:37:36 -0700219
Alexander Afanasyev09c7deb2011-11-23 14:50:10 -0800220 Ptr<Packet> packet = Create<Packet> ();
221 packet->AddHeader (interestHeader);
Alexander Afanasyev59e67712012-02-07 11:49:34 -0800222 NS_LOG_DEBUG ("Interest packet size: " << packet->GetSize ());
Alexander Afanasyevd02a5d62011-11-21 11:01:51 -0800223
Alexander Afanasyevbdc0d982011-12-16 01:15:26 -0800224 NS_LOG_DEBUG ("Trying to add " << seq << " with " << Simulator::Now () << ". already " << m_seqTimeouts.size () << " items");
225
Alexander Afanasyev359bfb72012-01-09 18:42:50 -0800226 m_seqTimeouts.insert (SeqTimeout (seq, Simulator::Now ()));
Alexander Afanasyev1ec705f2012-01-23 12:35:10 -0800227 m_seqLifetimes.insert (SeqTimeout (seq, Simulator::Now () + m_interestLifeTime)); // only one insert will work. if entry exists, nothing will happen... nothing should happen
Alexander Afanasyevbdc0d982011-12-16 01:15:26 -0800228 m_transmittedInterests (&interestHeader, this, m_face);
Alexander Afanasyev011b8592011-12-21 14:45:27 -0800229
Alexander Afanasyev359bfb72012-01-09 18:42:50 -0800230 m_rtt->SentSeq (SequenceNumber32 (seq), 1);
Alexander Afanasyeve1aa9b92012-10-11 10:40:02 -0700231
232 m_protocolHandler (packet);
233
Alexander Afanasyev011b8592011-12-21 14:45:27 -0800234 ScheduleNextPacket ();
Ilya Moiseenko8196d2e2011-08-29 13:03:22 -0700235}
Alexander Afanasyevc5a23e22011-09-07 00:37:36 -0700236
Alexander Afanasyev011b8592011-12-21 14:45:27 -0800237///////////////////////////////////////////////////
238// Process incoming packets //
239///////////////////////////////////////////////////
240
241
Ilya Moiseenko8196d2e2011-08-29 13:03:22 -0700242void
Alexander Afanasyev2b4c9472012-08-09 15:00:38 -0700243Consumer::OnContentObject (const Ptr<const ContentObjectHeader> &contentObject,
Alexander Afanasyeve9c9d722012-01-19 16:59:30 -0800244 Ptr<Packet> payload)
Ilya Moiseenko8196d2e2011-08-29 13:03:22 -0700245{
Alexander Afanasyev3183b5a2011-12-23 20:48:20 -0800246 if (!m_active) return;
247
Alexander Afanasyev2b4c9472012-08-09 15:00:38 -0700248 App::OnContentObject (contentObject, payload); // tracing inside
Alexander Afanasyevbdc0d982011-12-16 01:15:26 -0800249
Alexander Afanasyev09c7deb2011-11-23 14:50:10 -0800250 NS_LOG_FUNCTION (this << contentObject << payload);
251
Alexander Afanasyev781ea812011-12-15 22:42:09 -0800252 // NS_LOG_INFO ("Received content object: " << boost::cref(*contentObject));
253
254 uint32_t seq = boost::lexical_cast<uint32_t> (contentObject->GetName ().GetComponents ().back ());
255 NS_LOG_INFO ("< DATA for " << seq);
256
Alexander Afanasyev8dcfa5d2012-01-05 14:22:25 -0700257 // SeqTimeoutsContainer::iterator entry = m_seqTimeouts.find (seq);
Alexander Afanasyev781ea812011-12-15 22:42:09 -0800258
Alexander Afanasyev8f5a9bb2011-12-18 19:49:02 -0800259 // NS_ASSERT_MSG (entry != m_seqTimeouts.end (),
260 // "Comment out this assert, if it causes problems");
Alexander Afanasyev781ea812011-12-15 22:42:09 -0800261
Alexander Afanasyev36d5c2a2012-01-02 19:09:19 -0800262 // if (entry != m_seqTimeouts.end ())
263 // m_seqTimeouts.erase (entry);
264
Alexander Afanasyev1ec705f2012-01-23 12:35:10 -0800265 m_seqLifetimes.erase (seq);
Alexander Afanasyev36d5c2a2012-01-02 19:09:19 -0800266 m_seqTimeouts.erase (seq);
267 m_retxSeqs.erase (seq);
Alexander Afanasyev359bfb72012-01-09 18:42:50 -0800268
269 m_rtt->AckSeq (SequenceNumber32 (seq));
Alexander Afanasyev6bff0df2012-01-19 17:51:52 -0800270
Alexander Afanasyevde7601a2012-05-31 12:14:54 -0700271 // Ptr<const WeightsPathStretchTag> tag = payload->RemovePacketTag<WeightsPathStretchTag> ();
272 // if (tag != 0)
273 // {
274 // // Notify trace about path weights vector (e.g., for path-stretch calculation)
275 // m_pathWeightsTrace (GetNode (), tag->GetSourceNode (), seq, tag->GetTotalWeight ());
276 // // if (Names::FindName (GetNode ()) == "36")// || Names::FindName (GetNode ()) == "40"|| Names::FindName (GetNode ()) == "5")
277 // // std::cout << Simulator::Now () << "\t" << boost::cref(*tag) << " = " << tag->GetTotalWeight () << "\n";
278 // }
Alexander Afanasyev781ea812011-12-15 22:42:09 -0800279}
280
281void
Alexander Afanasyev2b4c9472012-08-09 15:00:38 -0700282Consumer::OnNack (const Ptr<const InterestHeader> &interest, Ptr<Packet> origPacket)
Alexander Afanasyev781ea812011-12-15 22:42:09 -0800283{
Alexander Afanasyev3183b5a2011-12-23 20:48:20 -0800284 if (!m_active) return;
285
Alexander Afanasyev2b4c9472012-08-09 15:00:38 -0700286 App::OnNack (interest, origPacket); // tracing inside
Alexander Afanasyevbdc0d982011-12-16 01:15:26 -0800287
Alexander Afanasyeve1b2a2d2012-11-16 11:53:42 -0800288 // NS_LOG_DEBUG ("Nack type: " << interest->GetNack ());
Alexander Afanasyev120bf312011-12-19 01:24:47 -0800289
Alexander Afanasyeve1b2a2d2012-11-16 11:53:42 -0800290 // NS_LOG_FUNCTION (interest->GetName ());
Alexander Afanasyev781ea812011-12-15 22:42:09 -0800291
292 // NS_LOG_INFO ("Received NACK: " << boost::cref(*interest));
293 uint32_t seq = boost::lexical_cast<uint32_t> (interest->GetName ().GetComponents ().back ());
294 NS_LOG_INFO ("< NACK for " << seq);
Alexander Afanasyev359bfb72012-01-09 18:42:50 -0800295 // std::cout << Simulator::Now ().ToDouble (Time::S) << "s -> " << "NACK for " << seq << "\n";
Alexander Afanasyev781ea812011-12-15 22:42:09 -0800296
297 // put in the queue of interests to be retransmitted
Alexander Afanasyeve1b2a2d2012-11-16 11:53:42 -0800298 // NS_LOG_INFO ("Before: " << m_retxSeqs.size ());
Alexander Afanasyev781ea812011-12-15 22:42:09 -0800299 m_retxSeqs.insert (seq);
Alexander Afanasyeve1b2a2d2012-11-16 11:53:42 -0800300 // NS_LOG_INFO ("After: " << m_retxSeqs.size ());
Alexander Afanasyev3183b5a2011-12-23 20:48:20 -0800301
Alexander Afanasyev92d5be12012-08-13 18:56:52 -0700302 m_rtt->IncreaseMultiplier (); // Double the next RTO ??
Alexander Afanasyev3183b5a2011-12-23 20:48:20 -0800303 ScheduleNextPacket ();
Ilya Moiseenko8196d2e2011-08-29 13:03:22 -0700304}
Alexander Afanasyevc5a23e22011-09-07 00:37:36 -0700305
Alexander Afanasyev359bfb72012-01-09 18:42:50 -0800306void
Alexander Afanasyev2b4c9472012-08-09 15:00:38 -0700307Consumer::OnTimeout (uint32_t sequenceNumber)
Alexander Afanasyev359bfb72012-01-09 18:42:50 -0800308{
Alexander Afanasyev92d5be12012-08-13 18:56:52 -0700309 NS_LOG_FUNCTION (sequenceNumber);
Alexander Afanasyev8e0d2812012-01-19 22:38:14 -0800310 // std::cout << Simulator::Now () << ", TO: " << sequenceNumber << ", current RTO: " << m_rtt->RetransmitTimeout ().ToDouble (Time::S) << "s\n";
Alexander Afanasyevb7ad2322012-01-17 22:54:49 -0800311
Alexander Afanasyev92d5be12012-08-13 18:56:52 -0700312 m_rtt->IncreaseMultiplier (); // Double the next RTO
Alexander Afanasyev8e0d2812012-01-19 22:38:14 -0800313 m_rtt->SentSeq (SequenceNumber32 (sequenceNumber), 1); // make sure to disable RTT calculation for this sample
Alexander Afanasyev4d66de52012-01-13 00:06:01 -0800314 m_retxSeqs.insert (sequenceNumber);
Alexander Afanasyev359bfb72012-01-09 18:42:50 -0800315 ScheduleNextPacket ();
316}
317
Alexander Afanasyev2b4c9472012-08-09 15:00:38 -0700318} // namespace ndn
Alexander Afanasyev09c7deb2011-11-23 14:50:10 -0800319} // namespace ns3