NS-3 based Named Data Networking (NDN) simulator
ndnSIM 2.3: NDN, CCN, CCNx, content centric networks
API Documentation
retx-suppression-exponential.hpp
Go to the documentation of this file.
1 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
2 /*
3  * Copyright (c) 2014-2017, Regents of the University of California,
4  * Arizona Board of Regents,
5  * Colorado State University,
6  * University Pierre & Marie Curie, Sorbonne University,
7  * Washington University in St. Louis,
8  * Beijing Institute of Technology,
9  * The University of Memphis.
10  *
11  * This file is part of NFD (Named Data Networking Forwarding Daemon).
12  * See AUTHORS.md for complete list of NFD authors and contributors.
13  *
14  * NFD is free software: you can redistribute it and/or modify it under the terms
15  * of the GNU General Public License as published by the Free Software Foundation,
16  * either version 3 of the License, or (at your option) any later version.
17  *
18  * NFD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
19  * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
20  * PURPOSE. See the GNU General Public License for more details.
21  *
22  * You should have received a copy of the GNU General Public License along with
23  * NFD, e.g., in COPYING.md file. If not, see <http://www.gnu.org/licenses/>.
24  */
25 
26 #ifndef NFD_DAEMON_FW_RETX_SUPPRESSION_EXPONENTIAL_HPP
27 #define NFD_DAEMON_FW_RETX_SUPPRESSION_EXPONENTIAL_HPP
28 
29 #include "algorithm.hpp"
30 #include "retx-suppression.hpp"
31 
32 namespace nfd {
33 namespace fw {
34 
42 {
43 public:
46  typedef time::microseconds Duration;
47 
48  explicit
49  RetxSuppressionExponential(const Duration& initialInterval = DEFAULT_INITIAL_INTERVAL,
50  float multiplier = DEFAULT_MULTIPLIER,
51  const Duration& maxInterval = DEFAULT_MAX_INTERVAL);
52 
57  decidePerPitEntry(pit::Entry& pitEntry);
58 
63  decidePerUpstream(pit::Entry& pitEntry, Face& outFace);
64 
67  void
69 
70 public:
73  class PitInfo;
74 
75 public:
76  static const Duration DEFAULT_INITIAL_INTERVAL;
77  static const float DEFAULT_MULTIPLIER;
78  static const Duration DEFAULT_MAX_INTERVAL;
79 
80 private:
81  const Duration m_initialInterval;
82  const float m_multiplier;
83  const Duration m_maxInterval;
84 };
85 
86 } // namespace fw
87 } // namespace nfd
88 
89 #endif // NFD_DAEMON_FW_RETX_SUPPRESSION_EXPONENTIAL_HPP
RetxSuppressionResult decidePerUpstream(pit::Entry &pitEntry, Face &outFace)
determines whether Interest is a retransmission per upstream and if so, whether it shall be forwarded...
ndn Face
Definition: face-impl.hpp:41
Copyright (c) 2011-2015 Regents of the University of California.
Definition: ndn-common.hpp:40
an Interest table entry
Definition: pit-entry.hpp:57
void incrementIntervalForOutRecord(pit::OutRecord &outRecord)
Increment the suppression interval for out record.
RetxSuppressionExponential(const Duration &initialInterval=DEFAULT_INITIAL_INTERVAL, float multiplier=DEFAULT_MULTIPLIER, const Duration &maxInterval=DEFAULT_MAX_INTERVAL)
time::microseconds Duration
time granularity
This file contains common algorithms used by forwarding strategies.
contains information about an Interest toward an outgoing face
a retransmission suppression decision algorithm that suppresses retransmissions using exponential bac...
RetxSuppressionResult decidePerPitEntry(pit::Entry &pitEntry)
determines whether Interest is a retransmission per pit entry and if so, whether it shall be forwarde...