NS-3 based Named Data Networking (NDN) simulator
ndnSIM 2.3: NDN, CCN, CCNx, content centric networks 		API Documentation
rtt-estimator.hpp
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1 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
26 #ifndef NFD_CORE_RTT_ESTIMATOR_HPP
27 #define NFD_CORE_RTT_ESTIMATOR_HPP
28 
29 #include "core/common.hpp"
30 
31 namespace nfd {
32 
43 class RttEstimator
44 {
45 public:
46  typedef time::microseconds Duration;
47 
48  static Duration
49  getInitialRtt(void)
50  {
51  return time::seconds(1);
52  }
53 
54  RttEstimator(uint16_t maxMultiplier = 16,
55  Duration minRto = time::milliseconds(1),
56  double gain = 0.1);
57 
58  void
59  addMeasurement(Duration measure);
60 
61  void
62  incrementMultiplier();
63 
64  void
65  doubleMultiplier();
66 
67  Duration
68  computeRto() const;
69 
70 private:
71  uint16_t m_maxMultiplier;
72  double m_minRto;
73 
74  double m_rtt;
75  double m_gain;
76  double m_variance;
77  uint16_t m_multiplier;
78  uint32_t m_nSamples;
79 };
80 
81 } // namespace nfd
82 
83 #endif // NFD_CORE_RTT_ESTIMATOR_HPP
nfd::RttEstimator::Duration
time::microseconds Duration
Definition: rtt-estimator.hpp:46
nfd::RttEstimator::RttEstimator
RttEstimator(uint16_t maxMultiplier=16, Duration minRto=time::milliseconds(1), double gain=0.1)
Definition: rtt-estimator.cpp:30
websocketpp::lib::asio::milliseconds
boost::posix_time::time_duration milliseconds(long duration)
Definition: asio.hpp:117
nfd::RttEstimator::computeRto
Duration computeRto() const
Definition: rtt-estimator.cpp:73
nfd::RttEstimator::addMeasurement
void addMeasurement(Duration measure)
Definition: rtt-estimator.cpp:42
nfd
Copyright (c) 2011-2015 Regents of the University of California.
Definition: ndn-common.hpp:40
nfd::RttEstimator
implements the Mean-Deviation RTT estimator
Definition: rtt-estimator.hpp:43
nfd::RttEstimator::getInitialRtt
static Duration getInitialRtt(void)
Definition: rtt-estimator.hpp:49