A Discrete-Event Network Simulator
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packet-loss-counter.h
Go to the documentation of this file.
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/*
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* Copyright (c) 2007,2008,2009 INRIA, UDCAST
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*
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* SPDX-License-Identifier: GPL-2.0-only
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*
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* Author: Amine Ismail <amine.ismail@sophia.inria.fr>
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* <amine.ismail@udcast.com>
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*
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*/
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#ifndef PACKET_LOSS_COUNTER_H
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#define PACKET_LOSS_COUNTER_H
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#include "ns3/address.h"
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#include "ns3/application.h"
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#include "ns3/event-id.h"
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#include "ns3/ptr.h"
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namespace
ns3
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{
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class
Socket;
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class
Packet;
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/**
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* \ingroup udpclientserver
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*
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* \brief A class to count the number of lost packets.
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*
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* This class records the packet lost in a client/server transmission
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* leveraging a sequence number. All the packets outside a given window
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* (i.e., too old with respect to the last sequence number seen) are considered lost,
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*/
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class
PacketLossCounter
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{
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public
:
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/**
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* \brief Constructor
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* \param bitmapSize The window size. Must be a multiple of 8.
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*/
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PacketLossCounter
(uint8_t bitmapSize);
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~PacketLossCounter
();
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/**
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* \brief Record a successfully received packet
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* \param seq the packet sequence number
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*/
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void
NotifyReceived
(
uint32_t
seq);
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/**
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* \brief Get the number of lost packets.
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* \returns the number of lost packets.
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*/
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uint32_t
GetLost
()
const
;
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/**
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* \brief Return the size of the window used to compute the packet loss.
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* \return the window size.
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*/
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uint16_t
GetBitMapSize
()
const
;
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/**
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* \brief Set the size of the window used to compute the packet loss.
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*
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* \param size The window size. Must be a multiple of 8.
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*/
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void
SetBitMapSize
(uint16_t size);
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private
:
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/**
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* \brief Check if a sequence number in the window has been received.
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* \param seqNum the sequence number.
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* \returns false if the packet has not been received.
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*/
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bool
GetBit
(
uint32_t
seqNum);
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/**
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* \brief Set a sequence number to a given state.
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* \param seqNum the sequence number.
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* \param val false if the packet has not been received.
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*/
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void
SetBit
(
uint32_t
seqNum,
bool
val);
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uint32_t
m_lost
;
//!< Lost packets counter.
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uint16_t
m_bitMapSize
;
//!< Window size.
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uint32_t
m_lastMaxSeqNum
;
//!< Last sequence number seen.
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uint8_t*
m_receiveBitMap
;
//!< Received packets in the window size.
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};
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}
// namespace ns3
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#endif
/* PACKET_LOSS_COUNTER_H */
ns3::PacketLossCounter
A class to count the number of lost packets.
Definition
packet-loss-counter.h:35
ns3::PacketLossCounter::SetBit
void SetBit(uint32_t seqNum, bool val)
Set a sequence number to a given state.
Definition
packet-loss-counter.cc:74
ns3::PacketLossCounter::NotifyReceived
void NotifyReceived(uint32_t seq)
Record a successfully received packet.
Definition
packet-loss-counter.cc:100
ns3::PacketLossCounter::m_lastMaxSeqNum
uint32_t m_lastMaxSeqNum
Last sequence number seen.
Definition
packet-loss-counter.h:81
ns3::PacketLossCounter::GetBit
bool GetBit(uint32_t seqNum)
Check if a sequence number in the window has been received.
Definition
packet-loss-counter.cc:67
ns3::PacketLossCounter::PacketLossCounter
PacketLossCounter(uint8_t bitmapSize)
Constructor.
Definition
packet-loss-counter.cc:21
ns3::PacketLossCounter::m_lost
uint32_t m_lost
Lost packets counter.
Definition
packet-loss-counter.h:79
ns3::PacketLossCounter::SetBitMapSize
void SetBitMapSize(uint16_t size)
Set the size of the window used to compute the packet loss.
Definition
packet-loss-counter.cc:45
ns3::PacketLossCounter::m_receiveBitMap
uint8_t * m_receiveBitMap
Received packets in the window size.
Definition
packet-loss-counter.h:82
ns3::PacketLossCounter::GetBitMapSize
uint16_t GetBitMapSize() const
Return the size of the window used to compute the packet loss.
Definition
packet-loss-counter.cc:38
ns3::PacketLossCounter::GetLost
uint32_t GetLost() const
Get the number of lost packets.
Definition
packet-loss-counter.cc:60
ns3::PacketLossCounter::~PacketLossCounter
~PacketLossCounter()
Definition
packet-loss-counter.cc:31
ns3::PacketLossCounter::m_bitMapSize
uint16_t m_bitMapSize
Window size.
Definition
packet-loss-counter.h:80
uint32_t
ns3
Every class exported by the ns3 library is enclosed in the ns3 namespace.
src
applications
model
packet-loss-counter.h
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