NS-3 based Named Data Networking (NDN) simulator
ndnSIM 2.5: NDN, CCN, CCNx, content centric networks
API Documentation
asf-strategy.hpp
Go to the documentation of this file.
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/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
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/*
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* Copyright (c) 2014-2019, Regents of the University of California,
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* Arizona Board of Regents,
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* Colorado State University,
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* University Pierre & Marie Curie, Sorbonne University,
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* Washington University in St. Louis,
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* Beijing Institute of Technology,
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* The University of Memphis.
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*
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* This file is part of NFD (Named Data Networking Forwarding Daemon).
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* See AUTHORS.md for complete list of NFD authors and contributors.
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*
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* NFD is free software: you can redistribute it and/or modify it under the terms
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* of the GNU General Public License as published by the Free Software Foundation,
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* either version 3 of the License, or (at your option) any later version.
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*
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* NFD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
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* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* NFD, e.g., in COPYING.md file. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef NFD_DAEMON_FW_ASF_STRATEGY_HPP
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#define NFD_DAEMON_FW_ASF_STRATEGY_HPP
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#include "
asf-measurements.hpp
"
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#include "
asf-probing-module.hpp
"
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#include "
fw/retx-suppression-exponential.hpp
"
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#include "
fw/strategy.hpp
"
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namespace
nfd
{
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namespace
fw {
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namespace
asf {
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class
AsfStrategy
:
public
Strategy
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{
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public
:
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explicit
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AsfStrategy
(
Forwarder
& forwarder,
const
Name
&
name
=
getStrategyName
());
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static
const
Name
&
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getStrategyName
();
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public
:
// triggers
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void
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afterReceiveInterest
(
const
FaceEndpoint
& ingress,
const
Interest
& interest,
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const
shared_ptr<pit::Entry>& pitEntry)
override
;
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void
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beforeSatisfyInterest
(
const
shared_ptr<pit::Entry>& pitEntry,
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const
FaceEndpoint
& ingress,
const
Data
& data)
override
;
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void
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afterReceiveNack
(
const
FaceEndpoint
& ingress,
const
lp::Nack
& nack,
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const
shared_ptr<pit::Entry>& pitEntry)
override
;
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private
:
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void
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processParams(
const
PartialName
& parsed);
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void
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forwardInterest(
const
Interest
& interest,
Face
& outFace,
const
fib::Entry
& fibEntry,
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const
shared_ptr<pit::Entry>& pitEntry,
bool
wantNewNonce =
false
);
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void
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sendProbe(
const
Interest
& interest,
const
FaceEndpoint
& ingress,
const
Face
& faceToUse,
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const
fib::Entry
& fibEntry,
const
shared_ptr<pit::Entry>& pitEntry);
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Face
*
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getBestFaceForForwarding(
const
Interest
& interest,
const
Face
& inFace,
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const
fib::Entry
& fibEntry,
const
shared_ptr<pit::Entry>& pitEntry,
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bool
isNewInterest =
true
);
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void
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onTimeout(
const
Name
& interestName,
FaceId
faceId);
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void
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sendNoRouteNack(
const
FaceEndpoint
& ingress,
const
shared_ptr<pit::Entry>& pitEntry);
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private
:
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AsfMeasurements
m_measurements;
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ProbingModule
m_probing;
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RetxSuppressionExponential
m_retxSuppression;
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size_t
m_maxSilentTimeouts = 0;
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static
const
time::milliseconds RETX_SUPPRESSION_INITIAL;
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static
const
time::milliseconds RETX_SUPPRESSION_MAX;
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};
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}
// namespace asf
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using
asf::AsfStrategy
;
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}
// namespace fw
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}
// namespace nfd
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#endif // NFD_DAEMON_FW_ASF_STRATEGY_HPP
asf-measurements.hpp
ndn::PartialName
Name PartialName
Represents an arbitrary sequence of name components.
Definition:
name.hpp:39
nfd::fw::asf::AsfMeasurements
Helper class to retrieve and create strategy measurements.
Definition:
asf-measurements.hpp:189
retx-suppression-exponential.hpp
nfd::fw::asf::AsfStrategy
AsfStrategy
Definition:
asf-strategy.cpp:35
nfd::fw::RetxSuppressionExponential
a retransmission suppression decision algorithm that suppresses retransmissions using exponential bac...
Definition:
retx-suppression-exponential.hpp:42
ndn::Name
Represents an absolute name.
Definition:
name.hpp:44
nfd::fw::asf::AsfStrategy::beforeSatisfyInterest
void beforeSatisfyInterest(const shared_ptr< pit::Entry > &pitEntry, const FaceEndpoint &ingress, const Data &data) override
trigger before PIT entry is satisfied
Definition:
asf-strategy.cpp:168
nfd
Copyright (c) 2011-2015 Regents of the University of California.
Definition:
ndn-common.hpp:40
nfd::face::FaceId
uint64_t FaceId
Identifies a face.
Definition:
face-common.hpp:44
nfd::face::Face
generalization of a network interface
Definition:
face.hpp:53
nfd::fw::asf::AsfStrategy::afterReceiveNack
void afterReceiveNack(const FaceEndpoint &ingress, const lp::Nack &nack, const shared_ptr< pit::Entry > &pitEntry) override
trigger after Nack is received
Definition:
asf-strategy.cpp:201
nfd::FaceEndpoint
Represents a face-endpoint pair in the forwarder.
Definition:
face-endpoint.hpp:37
ndn::Interest
Represents an Interest packet.
Definition:
interest.hpp:44
nfd::fib::Entry
represents a FIB entry
Definition:
fib-entry.hpp:54
ndn::Data
Represents a Data packet.
Definition:
data.hpp:36
nfd::fw::Strategy
represents a forwarding strategy
Definition:
strategy.hpp:38
nfd::Forwarder
Main class of NFD's forwarding engine.
Definition:
forwarder.hpp:52
nfd::fw::asf::ProbingModule
ASF Probing Module.
Definition:
asf-probing-module.hpp:38
nfd::fw::asf::AsfStrategy::afterReceiveInterest
void afterReceiveInterest(const FaceEndpoint &ingress, const Interest &interest, const shared_ptr< pit::Entry > &pitEntry) override
trigger after Interest is received
Definition:
asf-strategy.cpp:110
nfd::fw::asf::AsfStrategy::AsfStrategy
AsfStrategy(Forwarder &forwarder, const Name &name=getStrategyName())
Definition:
asf-strategy.cpp:41
ndn::lp::Nack
represents a Network Nack
Definition:
nack.hpp:39
asf-probing-module.hpp
strategy.hpp
ndn::name
Definition:
name-component-types.hpp:33
nfd::fw::asf::AsfStrategy
Adaptive SRTT-based Forwarding Strategy.
Definition:
asf-strategy.hpp:47
nfd::fw::asf::AsfStrategy::getStrategyName
static const Name & getStrategyName()
Definition:
asf-strategy.cpp:65
ndnSIM
NFD
daemon
fw
asf-strategy.hpp
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