NS-3 based Named Data Networking (NDN) simulator
ndnSIM 2.5: NDN, CCN, CCNx, content centric networks
API Documentation
retx-suppression-fixed.cpp
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8  * Beijing Institute of Technology,
9  * The University of Memphis.
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25 
27 
28 namespace nfd {
29 namespace fw {
30 
31 const time::milliseconds RetxSuppressionFixed::DEFAULT_MIN_RETX_INTERVAL = 100_ms;
32 
33 RetxSuppressionFixed::RetxSuppressionFixed(const time::milliseconds& minRetxInterval)
34  : m_minRetxInterval(minRetxInterval)
35 {
36  BOOST_ASSERT(minRetxInterval > 0_ms);
37 }
38 
41 {
42  bool isNewPitEntry = !hasPendingOutRecords(pitEntry);
43  if (isNewPitEntry) {
45  }
46 
47  time::steady_clock::TimePoint lastOutgoing = getLastOutgoing(pitEntry);
49  time::steady_clock::Duration sinceLastOutgoing = now - lastOutgoing;
50  bool shouldSuppress = sinceLastOutgoing < m_minRetxInterval;
52 }
53 
54 } // namespace fw
55 } // namespace nfd
nfd::fw::RetxSuppressionFixed::DEFAULT_MIN_RETX_INTERVAL
static const time::milliseconds DEFAULT_MIN_RETX_INTERVAL
Definition: retx-suppression-fixed.hpp:51
ndn::time::steady_clock::now
static time_point now() noexcept
Definition: time.cpp:80
nfd::fw::RetxSuppressionFixed::decidePerPitEntry
RetxSuppressionResult decidePerPitEntry(pit::Entry &pitEntry) const
determines whether Interest is a retransmission, and if so, whether it shall be forwarded or suppress...
Definition: retx-suppression-fixed.cpp:40
ndn::time::steady_clock::Duration
duration Duration
Definition: time.hpp:226
nfd::fw::RetxSuppressionResult
RetxSuppressionResult
Definition: retx-suppression.hpp:34
nfd
Copyright (c) 2011-2015 Regents of the University of California.
Definition: ndn-common.hpp:40
nfd::pit::Entry
An Interest table entry.
Definition: pit-entry.hpp:59
retx-suppression-fixed.hpp
nfd::fw::getLastOutgoing
time::steady_clock::TimePoint getLastOutgoing(const pit::Entry &pitEntry)
Definition: algorithm.cpp:119
nfd::fw::RetxSuppressionResult::FORWARD
@ FORWARD
Interest is retransmission and should be forwarded.
ndn::time::steady_clock::TimePoint
time_point TimePoint
Definition: time.hpp:225
nfd::fw::RetxSuppressionFixed::RetxSuppressionFixed
RetxSuppressionFixed(const time::milliseconds &minRetxInterval=DEFAULT_MIN_RETX_INTERVAL)
Definition: retx-suppression-fixed.cpp:33
nfd::fw::hasPendingOutRecords
bool hasPendingOutRecords(const pit::Entry &pitEntry)
determine whether pitEntry has any pending out-records
Definition: algorithm.cpp:108
nfd::fw::RetxSuppressionResult::SUPPRESS
@ SUPPRESS
Interest is retransmission and should be suppressed.
nfd::fw::RetxSuppressionResult::NEW
@ NEW
Interest is new (not a retransmission)