de/d61/tbf-queue-disc-test-suite_8cc_source.html

/*

 * Copyright (c) 2017 Kungliga Tekniska Högskolan

 *               2017 Universita' degli Studi di Napoli Federico II

 *

 * SPDX-License-Identifier: GPL-2.0-only

 *

 * Authors: Surya Seetharaman <suryaseetharaman.9@gmail.com>

 *          Stefano Avallone <stavallo@unina.it>

 */


#include "ns3/config.h"

#include "ns3/double.h"

#include "ns3/log.h"

#include "ns3/node-container.h"

#include "ns3/packet.h"

#include "ns3/simple-channel.h"

#include "ns3/simple-net-device.h"

#include "ns3/simulator.h"

#include "ns3/string.h"

#include "ns3/tbf-queue-disc.h"

#include "ns3/test.h"

#include "ns3/traffic-control-layer.h"

#include "ns3/uinteger.h"


using namespace ns3;


/**

 * @ingroup traffic-control-test

 *

 * @brief Tbf Queue Disc Test Item

 */


class TbfQueueDiscTestItem : public QueueDiscItem

{

  public:

    /**

     * Constructor

     *

     * @param p the packet

     * @param addr the address

     */

    TbfQueueDiscTestItem(Ptr<Packet> p, const Address& addr);

    ~TbfQueueDiscTestItem() override;


    // Delete default constructor, copy constructor and assignment operator to avoid misuse

    TbfQueueDiscTestItem() = delete;

    TbfQueueDiscTestItem(const TbfQueueDiscTestItem&) = delete;

    TbfQueueDiscTestItem& operator=(const TbfQueueDiscTestItem&) = delete;


    void AddHeader() override;

    bool Mark() override;

};


TbfQueueDiscTestItem::TbfQueueDiscTestItem(Ptr<Packet> p, const Address& addr)

    : QueueDiscItem(p, addr, 0)

{

}


TbfQueueDiscTestItem::~TbfQueueDiscTestItem()

{

}


void


TbfQueueDiscTestItem::AddHeader()

{

}


bool


TbfQueueDiscTestItem::Mark()

{

    return false;

}


/**

 * @ingroup traffic-control-test

 *

 * @brief Tbf Queue Disc Test Case

 */


class TbfQueueDiscTestCase : public TestCase

{

  public:

    TbfQueueDiscTestCase();

    void DoRun() override;


  private:

    /**

     * Enqueue function

     * @param queue the queue disc into which enqueue needs to be done

     * @param dest the destination address

     * @param size the size of the packet in bytes to be enqueued

     */

    void Enqueue(Ptr<TbfQueueDisc> queue, Address dest, uint32_t size);

    /**

     * DequeueAndCheck function to check if a packet is blocked or not after dequeuing and verify

     * against expected result

     * @param queue the queue disc on which DequeueAndCheck needs to be done

     * @param flag the boolean value against which the return value of dequeue ()

     * has to be compared with

     * @param printStatement the string to be printed in the NS_TEST_EXPECT_MSG_EQ

     */

    void DequeueAndCheck(Ptr<TbfQueueDisc> queue, bool flag, std::string printStatement);

    /**

     * Run TBF test function

     * @param mode the mode

     */

    void RunTbfTest(QueueSizeUnit mode);

};


TbfQueueDiscTestCase::TbfQueueDiscTestCase()

    : TestCase("Sanity check on the TBF queue implementation")

{

}


void


TbfQueueDiscTestCase::RunTbfTest(QueueSizeUnit mode)

{

    uint32_t pktSize = 1500;

    // 1 for packets; pktSize for bytes

    uint32_t modeSize = 1;

    uint32_t qSize = 4;

    uint32_t burst = 6000;

    uint32_t mtu = 0;

    DataRate rate = DataRate("6KB/s");

    DataRate peakRate = DataRate("0KB/s");


    Ptr<TbfQueueDisc> queue = CreateObject<TbfQueueDisc>();


    // test 1: Simple Enqueue/Dequeue with verification of attribute setting

    /* 1. There is no second bucket since "peakRate" is set to 0.

       2. A simple enqueue of five packets, each containing 1500B is followed by

          the dequeue those five packets.

       3. The subtraction of tokens from the first bucket to send out each of the

          five packets is monitored and verified.

       Note : The number of tokens in the first bucket is full at the beginning.

              With the dequeuing of each packet, the number of tokens keeps decreasing.

              So packets are dequeued as long as there are enough tokens in the bucket. */


    if (mode == QueueSizeUnit::BYTES)

    {

        modeSize = pktSize;

        qSize = qSize * modeSize;

    }


    NS_TEST_ASSERT_MSG_EQ(

        queue->SetAttributeFailSafe("MaxSize", QueueSizeValue(QueueSize(mode, qSize))),

        true,

        "Verify that we can actually set the attribute MaxSize");

    NS_TEST_ASSERT_MSG_EQ(queue->SetAttributeFailSafe("Burst", UintegerValue(burst)),

                          true,

                          "Verify that we can actually set the attribute Burst");

    NS_TEST_ASSERT_MSG_EQ(queue->SetAttributeFailSafe("Mtu", UintegerValue(mtu)),

                          true,

                          "Verify that we can actually set the attribute Mtu");

    NS_TEST_ASSERT_MSG_EQ(queue->SetAttributeFailSafe("Rate", DataRateValue(rate)),

                          true,

                          "Verify that we can actually set the attribute Rate");

    NS_TEST_ASSERT_MSG_EQ(queue->SetAttributeFailSafe("PeakRate", DataRateValue(peakRate)),

                          true,

                          "Verify that we can actually set the attribute PeakRate");


    Address dest;


    Ptr<Packet> p1;

    Ptr<Packet> p2;

    Ptr<Packet> p3;

    Ptr<Packet> p4;

    Ptr<Packet> p5;

    p1 = Create<Packet>(pktSize);

    p2 = Create<Packet>(pktSize);

    p3 = Create<Packet>(pktSize);

    p4 = Create<Packet>(pktSize);

    p5 = Create<Packet>(pktSize);


    queue->Initialize();

    NS_TEST_ASSERT_MSG_EQ(queue->GetCurrentSize().GetValue(),

                          0 * modeSize,

                          "There should be no packets in there");

    queue->Enqueue(Create<TbfQueueDiscTestItem>(p1, dest));

    NS_TEST_ASSERT_MSG_EQ(queue->GetCurrentSize().GetValue(),

                          1 * modeSize,

                          "There should be one packet in there");

    queue->Enqueue(Create<TbfQueueDiscTestItem>(p2, dest));

    NS_TEST_ASSERT_MSG_EQ(queue->GetCurrentSize().GetValue(),

                          2 * modeSize,

                          "There should be two packets in there");

    queue->Enqueue(Create<TbfQueueDiscTestItem>(p3, dest));

    NS_TEST_ASSERT_MSG_EQ(queue->GetCurrentSize().GetValue(),

                          3 * modeSize,

                          "There should be three packets in there");

    queue->Enqueue(Create<TbfQueueDiscTestItem>(p4, dest));

    NS_TEST_ASSERT_MSG_EQ(queue->GetCurrentSize().GetValue(),

                          4 * modeSize,

                          "There should be four packets in there");

    queue->Enqueue(Create<TbfQueueDiscTestItem>(p5, dest));

    NS_TEST_ASSERT_MSG_EQ(queue->GetCurrentSize().GetValue(),

                          4 * modeSize,

                          "There should still be four packets in there as this enqueue cannot "

                          "happen since QueueLimit will be exceeded");


    Ptr<QueueDiscItem> item;

    NS_TEST_ASSERT_MSG_EQ(queue->GetFirstBucketTokens(),

                          burst,

                          "The first token bucket should be full");

    item = queue->Dequeue();

    NS_TEST_ASSERT_MSG_NE(item, nullptr, "I want to remove the first packet");

    NS_TEST_ASSERT_MSG_EQ(queue->GetCurrentSize().GetValue(),

                          3 * modeSize,

                          "There should be three packets in there");

    NS_TEST_ASSERT_MSG_EQ(item->GetPacket()->GetUid(), p1->GetUid(), "was this the first packet ?");

    NS_TEST_ASSERT_MSG_EQ(queue->GetFirstBucketTokens(),

                          burst - (1 * pktSize),

                          "The number of tokens in the first bucket should be one pktSize lesser");


    item = queue->Dequeue();

    NS_TEST_ASSERT_MSG_NE(item, nullptr, "I want to remove the second packet");

    NS_TEST_ASSERT_MSG_EQ(queue->GetCurrentSize().GetValue(),

                          2 * modeSize,

                          "There should be two packets in there");

    NS_TEST_ASSERT_MSG_EQ(item->GetPacket()->GetUid(),

                          p2->GetUid(),

                          "Was this the second packet ?");

    NS_TEST_ASSERT_MSG_EQ(queue->GetFirstBucketTokens(),

                          burst - (2 * pktSize),

                          "The number of tokens in the first bucket should be two pktSizes lesser");


    item = queue->Dequeue();

    NS_TEST_ASSERT_MSG_NE(item, nullptr, "I want to remove the third packet");

    NS_TEST_ASSERT_MSG_EQ(queue->GetCurrentSize().GetValue(),

                          1 * modeSize,

                          "There should be one packet in there");

    NS_TEST_ASSERT_MSG_EQ(item->GetPacket()->GetUid(), p3->GetUid(), "Was this the third packet ?");

    NS_TEST_ASSERT_MSG_EQ(

        queue->GetFirstBucketTokens(),

        burst - (3 * pktSize),

        "The number of tokens in the first bucket should be three pktSizes lesser");


    item = queue->Dequeue();

    NS_TEST_ASSERT_MSG_NE(item, nullptr, "I want to remove the fourth packet");

    NS_TEST_ASSERT_MSG_EQ(queue->GetCurrentSize().GetValue(),

                          0 * modeSize,

                          "There should be zero packet in there");

    NS_TEST_ASSERT_MSG_EQ(item->GetPacket()->GetUid(),

                          p4->GetUid(),

                          "Was this the fourth packet ?");

    NS_TEST_ASSERT_MSG_EQ(

        queue->GetFirstBucketTokens(),

        burst - (4 * pktSize),

        "The number of tokens in the first bucket should be four pktSizes lesser");


    // test 2 : When DataRate == FirstBucketTokenRate; packets should pass smoothly.

    queue = CreateObject<TbfQueueDisc>();

    qSize = 10;

    pktSize = 1000;

    burst = 10000;

    mtu = 1000;

    rate = DataRate("10KB/s");

    peakRate = DataRate("100KB/s");

    uint32_t nPkt = qSize;


    if (mode == QueueSizeUnit::BYTES)

    {

        modeSize = pktSize;

        qSize = qSize * modeSize;

    }


    NS_TEST_ASSERT_MSG_EQ(

        queue->SetAttributeFailSafe("MaxSize", QueueSizeValue(QueueSize(mode, qSize))),

        true,

        "Verify that we can actually set the attribute MaxSize");

    NS_TEST_ASSERT_MSG_EQ(queue->SetAttributeFailSafe("Burst", UintegerValue(burst)),

                          true,

                          "Verify that we can actually set the attribute Burst");

    NS_TEST_ASSERT_MSG_EQ(queue->SetAttributeFailSafe("Mtu", UintegerValue(mtu)),

                          true,

                          "Verify that we can actually set the attribute Mtu");

    NS_TEST_ASSERT_MSG_EQ(queue->SetAttributeFailSafe("Rate", DataRateValue(rate)),

                          true,

                          "Verify that we can actually set the attribute Rate");

    NS_TEST_ASSERT_MSG_EQ(queue->SetAttributeFailSafe("PeakRate", DataRateValue(peakRate)),

                          true,

                          "Verify that we can actually set the attribute PeakRate");


    queue->Initialize();

    double delay = 0.09;

    for (uint32_t i = 1; i <= nPkt; i++)

    {

        Simulator::Schedule(Seconds((i + 1) * delay),

                            &TbfQueueDiscTestCase::Enqueue,

                            this,

                            queue,

                            dest,

                            pktSize);

    }

    delay = 0.1;

    for (uint32_t i = 1; i <= nPkt; i++)

    {

        Simulator::Schedule(Seconds((i + 1) * delay),

                            &TbfQueueDiscTestCase::DequeueAndCheck,

                            this,

                            queue,

                            true,

                            "No packet should be blocked");

    }

    Simulator::Stop(Seconds(1));

    Simulator::Run();


    // test 3 : When DataRate >>> FirstBucketTokenRate; some packets should get blocked and waking

    // of queue should get scheduled.

    /* 10 packets are enqueued and then dequeued. Since the token rate is less than the data rate,

       the last packet i.e the 10th packet gets blocked and waking of queue is scheduled after a

       time when enough tokens will be available. At that time the 10th packet passes through. */

    queue = CreateObject<TbfQueueDisc>();


    Config::SetDefault("ns3::QueueDisc::Quota", UintegerValue(1));

    NodeContainer nodesA;

    nodesA.Create(2);

    Ptr<SimpleNetDevice> txDevA = CreateObject<SimpleNetDevice>();

    nodesA.Get(0)->AddDevice(txDevA);

    Ptr<SimpleNetDevice> rxDevA = CreateObject<SimpleNetDevice>();

    nodesA.Get(1)->AddDevice(rxDevA);

    Ptr<SimpleChannel> channelA = CreateObject<SimpleChannel>();

    txDevA->SetChannel(channelA);

    rxDevA->SetChannel(channelA);

    txDevA->SetNode(nodesA.Get(0));

    rxDevA->SetNode(nodesA.Get(1));


    dest = txDevA->GetAddress();


    Ptr<TrafficControlLayer> tcA = CreateObject<TrafficControlLayer>();

    nodesA.Get(0)->AggregateObject(tcA);

    tcA->SetRootQueueDiscOnDevice(txDevA, queue);

    tcA->Initialize();


    burst = 5000;

    mtu = 1000;

    rate = DataRate("5KB/s");

    peakRate = DataRate("100KB/s");


    if (mode == QueueSizeUnit::BYTES)

    {

        modeSize = pktSize;

        qSize = qSize * modeSize;

    }


    NS_TEST_ASSERT_MSG_EQ(

        queue->SetAttributeFailSafe("MaxSize", QueueSizeValue(QueueSize(mode, qSize))),

        true,

        "Verify that we can actually set the attribute MaxSize");

    NS_TEST_ASSERT_MSG_EQ(queue->SetAttributeFailSafe("Burst", UintegerValue(burst)),

                          true,

                          "Verify that we can actually set the attribute Burst");

    NS_TEST_ASSERT_MSG_EQ(queue->SetAttributeFailSafe("Mtu", UintegerValue(mtu)),

                          true,

                          "Verify that we can actually set the attribute Mtu");

    NS_TEST_ASSERT_MSG_EQ(queue->SetAttributeFailSafe("Rate", DataRateValue(rate)),

                          true,

                          "Verify that we can actually set the attribute Rate");

    NS_TEST_ASSERT_MSG_EQ(queue->SetAttributeFailSafe("PeakRate", DataRateValue(peakRate)),

                          true,

                          "Verify that we can actually set the attribute PeakRate");


    delay = 0.09;

    for (uint32_t i = 1; i <= nPkt; i++)

    {

        Simulator::Schedule(Seconds((i + 1) * delay),

                            &TbfQueueDiscTestCase::Enqueue,

                            this,

                            queue,

                            dest,

                            pktSize);

    }

    delay = 0.1;

    for (uint32_t i = 1; i <= nPkt; i++)

    {

        if (i == 10)

        {

            Simulator::Schedule(Seconds((i + 1) * delay),

                                &TbfQueueDiscTestCase::DequeueAndCheck,

                                this,

                                queue,

                                false,

                                "10th packet should be blocked");

        }

        else

        {

            Simulator::Schedule(Seconds((i + 1) * delay),

                                &TbfQueueDiscTestCase::DequeueAndCheck,

                                this,

                                queue,

                                true,

                                "This packet should not be blocked");

        }

    }

    Simulator::Stop(Seconds(1.3));

    Simulator::Run();


    // test 4 : This test checks the peakRate control of packet dequeue, when DataRate <

    // FirstBucketTokenRate.

    /* 10 packets each of size 1000 bytes are enqueued followed by

       their dequeue. The data rate (25 KB/s) is not sufficiently higher than the btokens rate (15

       KB/s), so that in the startup phase the first bucket is not empty. Hence when adequate tokens

       are present in the second (peak) bucket, the packets get transmitted, otherwise they are

       blocked. So basically the transmission of packets falls under the regulation of the second

       bucket since first bucket will always have excess tokens. TBF does not let all the packets go

       smoothly without any control just because there are excess tokens in the first bucket. */

    queue = CreateObject<TbfQueueDisc>();


    Config::SetDefault("ns3::QueueDisc::Quota", UintegerValue(1));

    NodeContainer nodesB;

    nodesB.Create(2);

    Ptr<SimpleNetDevice> txDevB = CreateObject<SimpleNetDevice>();

    nodesB.Get(0)->AddDevice(txDevB);

    Ptr<SimpleNetDevice> rxDevB = CreateObject<SimpleNetDevice>();

    nodesB.Get(1)->AddDevice(rxDevB);

    Ptr<SimpleChannel> channelB = CreateObject<SimpleChannel>();

    txDevB->SetChannel(channelB);

    rxDevB->SetChannel(channelB);

    txDevB->SetNode(nodesB.Get(0));

    rxDevB->SetNode(nodesB.Get(1));


    dest = txDevB->GetAddress();


    Ptr<TrafficControlLayer> tcB = CreateObject<TrafficControlLayer>();

    nodesB.Get(0)->AggregateObject(tcB);

    tcB->SetRootQueueDiscOnDevice(txDevB, queue);

    tcB->Initialize();


    burst = 15000;

    mtu = 1000;

    pktSize = 1000;

    rate = DataRate("15KB/s");

    peakRate = DataRate("20KB/s");


    if (mode == QueueSizeUnit::BYTES)

    {

        modeSize = pktSize;

        qSize = qSize * modeSize;

    }


    NS_TEST_ASSERT_MSG_EQ(

        queue->SetAttributeFailSafe("MaxSize", QueueSizeValue(QueueSize(mode, qSize))),

        true,

        "Verify that we can actually set the attribute MaxSize");

    NS_TEST_ASSERT_MSG_EQ(queue->SetAttributeFailSafe("Burst", UintegerValue(burst)),

                          true,

                          "Verify that we can actually set the attribute Burst");

    NS_TEST_ASSERT_MSG_EQ(queue->SetAttributeFailSafe("Mtu", UintegerValue(mtu)),

                          true,

                          "Verify that we can actually set the attribute Mtu");

    NS_TEST_ASSERT_MSG_EQ(queue->SetAttributeFailSafe("Rate", DataRateValue(rate)),

                          true,

                          "Verify that we can actually set the attribute Rate");

    NS_TEST_ASSERT_MSG_EQ(queue->SetAttributeFailSafe("PeakRate", DataRateValue(peakRate)),

                          true,

                          "Verify that we can actually set the attribute PeakRate");


    queue->Initialize();

    delay = 0.04;

    for (uint32_t i = 1; i <= nPkt; i++)

    {

        Simulator::Schedule(Seconds((i + 1) * delay),

                            &TbfQueueDiscTestCase::Enqueue,

                            this,

                            queue,

                            dest,

                            pktSize);

    }


    // The pattern being checked is a pattern of dequeue followed by blocked.  The delay between

    // enqueues is not sufficient to allow ptokens to refill before the next dequeue.  The first

    // enqueue is at 1.08s in the future, and the attempted dequeue is at 1.10s in the future.  The

    // first dequeue will always succeed.  The second enqueue is 1.12s and attempted dequeue is

    // at 1.14s in the future, but the last dequeue was 0.04s prior; only 800 tokens can be refilled

    // in 0.04s at a peak rate of 20Kbps.  The actual dequeue occurs at 0.01s further into the

    // future when ptokens refills to 1000. To repeat the pattern, odd-numbered dequeue events

    // should be spaced at intervals of at least 100ms, and the even-numbered dequeue events (that

    // block) should be 0.04s (delay) following the last odd-numbered dequeue event.

    double nextDelay = (2 * delay) + 0.02; // 20ms after first enqueue to attempt the first dequeue;

    for (uint32_t i = 1; i <= nPkt; i++)

    {

        if (i % 2 == 1)

        {

            Simulator::Schedule(Seconds(nextDelay),

                                &TbfQueueDiscTestCase::DequeueAndCheck,

                                this,

                                queue,

                                true,

                                "1st packet should not be blocked");

            nextDelay += 0.04;

        }

        else

        {

            Simulator::Schedule(Seconds(nextDelay),

                                &TbfQueueDiscTestCase::DequeueAndCheck,

                                this,

                                queue,

                                false,

                                "This packet should be blocked");

            nextDelay += 0.06; // Need 0.04 + 0.06 seconds to allow the next packet to be dequeued

                               // without block

        }

    }

    Simulator::Stop(Seconds(0.55));

    Simulator::Run();

}


void


TbfQueueDiscTestCase::Enqueue(Ptr<TbfQueueDisc> queue, Address dest, uint32_t size)

{

    queue->Enqueue(Create<TbfQueueDiscTestItem>(Create<Packet>(size), dest));

}


void


TbfQueueDiscTestCase::DequeueAndCheck(Ptr<TbfQueueDisc> queue,

                                      bool flag,

                                      std::string printStatement)

{

    Ptr<QueueDiscItem> item = queue->Dequeue();

    NS_TEST_EXPECT_MSG_EQ((item != nullptr), flag, printStatement);

}


void


TbfQueueDiscTestCase::DoRun()

{

    RunTbfTest(QueueSizeUnit::PACKETS);

    RunTbfTest(QueueSizeUnit::BYTES);

    Simulator::Destroy();

}


/**

 * @ingroup traffic-control-test

 *

 * @brief Tbf Queue Disc Test Suite

 */


static class TbfQueueDiscTestSuite : public TestSuite

{

  public:


    TbfQueueDiscTestSuite()

        : TestSuite("tbf-queue-disc", Type::UNIT)

    {

        AddTestCase(new TbfQueueDiscTestCase(), TestCase::Duration::QUICK);

    }


} g_tbfQueueTestSuite; ///< the test suite


TbfQueueDiscTestCase
Tbf Queue Disc Test Case.
Definition tbf-queue-disc-test-suite.cc:79

TbfQueueDiscTestCase::RunTbfTest
void RunTbfTest(QueueSizeUnit mode)
Run TBF test function.
Definition tbf-queue-disc-test-suite.cc:114

TbfQueueDiscTestCase::TbfQueueDiscTestCase
TbfQueueDiscTestCase()
Definition tbf-queue-disc-test-suite.cc:108

TbfQueueDiscTestCase::DoRun
void DoRun() override
Implementation to actually run this TestCase.
Definition tbf-queue-disc-test-suite.cc:522

TbfQueueDiscTestCase::Enqueue
void Enqueue(Ptr< TbfQueueDisc > queue, Address dest, uint32_t size)
Enqueue function.
Definition tbf-queue-disc-test-suite.cc:507

TbfQueueDiscTestCase::DequeueAndCheck
void DequeueAndCheck(Ptr< TbfQueueDisc > queue, bool flag, std::string printStatement)
DequeueAndCheck function to check if a packet is blocked or not after dequeuing and verify against ex...
Definition tbf-queue-disc-test-suite.cc:513

TbfQueueDiscTestItem
Tbf Queue Disc Test Item.
Definition tbf-queue-disc-test-suite.cc:33

TbfQueueDiscTestItem::~TbfQueueDiscTestItem
~TbfQueueDiscTestItem() override
Definition tbf-queue-disc-test-suite.cc:58

TbfQueueDiscTestItem::TbfQueueDiscTestItem
TbfQueueDiscTestItem()=delete

TbfQueueDiscTestItem::Mark
bool Mark() override
Marks the packet as a substitute for dropping it, such as for Explicit Congestion Notification.
Definition tbf-queue-disc-test-suite.cc:68

TbfQueueDiscTestItem::TbfQueueDiscTestItem
TbfQueueDiscTestItem(const TbfQueueDiscTestItem &)=delete

TbfQueueDiscTestItem::AddHeader
void AddHeader() override
Add the header to the packet.
Definition tbf-queue-disc-test-suite.cc:63

TbfQueueDiscTestItem::operator=
TbfQueueDiscTestItem & operator=(const TbfQueueDiscTestItem &)=delete

TbfQueueDiscTestSuite
Tbf Queue Disc Test Suite.
Definition tbf-queue-disc-test-suite.cc:535

TbfQueueDiscTestSuite::TbfQueueDiscTestSuite
TbfQueueDiscTestSuite()
Definition tbf-queue-disc-test-suite.cc:537

ns3::Address
a polymophic address class
Definition address.h:90

ns3::DataRate
Class for representing data rates.
Definition data-rate.h:78

ns3::DataRateValue
Definition data-rate.h:285

ns3::NodeContainer
keep track of a set of node pointers.
Definition node-container.h:29

ns3::NodeContainer::Create
void Create(uint32_t n)
Create n nodes and append pointers to them to the end of this NodeContainer.
Definition node-container.cc:73

ns3::NodeContainer::Get
Ptr< Node > Get(uint32_t i) const
Get the Ptr<Node> stored in this container at a given index.
Definition node-container.cc:67

ns3::Node::AddDevice
uint32_t AddDevice(Ptr< NetDevice > device)
Associate a NetDevice to this node.
Definition node.cc:124

ns3::Object::AggregateObject
void AggregateObject(Ptr< Object > other)
Aggregate two Objects together.
Definition object.cc:298

ns3::Ptr
Smart pointer class similar to boost::intrusive_ptr.
Definition mpi-test-fixtures.h:37

ns3::QueueDiscItem
QueueDiscItem is the abstract base class for items that are stored in a queue disc.
Definition queue-item.h:122

ns3::QueueSize
Class for representing queue sizes.
Definition queue-size.h:85

ns3::QueueSizeValue
Definition queue-size.h:210

ns3::Simulator::Schedule
static EventId Schedule(const Time &delay, FUNC f, Ts &&... args)
Schedule an event to expire after delay.
Definition simulator.h:560

ns3::Simulator::Destroy
static void Destroy()
Execute the events scheduled with ScheduleDestroy().
Definition simulator.cc:131

ns3::Simulator::Run
static void Run()
Run the simulation.
Definition simulator.cc:167

ns3::Simulator::Stop
static void Stop()
Tell the Simulator the calling event should be the last one executed.
Definition simulator.cc:175

ns3::TestCase
encapsulates test code
Definition test.h:1050

ns3::TestCase::AddTestCase
void AddTestCase(TestCase *testCase, Duration duration=Duration::QUICK)
Add an individual child TestCase to this test suite.
Definition test.cc:292

ns3::TestSuite
A suite of tests to run.
Definition test.h:1267

ns3::TestSuite::Type
Type
Type of test.
Definition test.h:1274

ns3::TestSuite::UNIT
static constexpr auto UNIT
Definition test.h:1291

ns3::UintegerValue
Hold an unsigned integer type.
Definition uinteger.h:34

uint32_t

ns3::Config::SetDefault
void SetDefault(std::string name, const AttributeValue &value)
Definition config.cc:883

ns3::CreateObject
Ptr< T > CreateObject(Args &&... args)
Create an object by type, with varying number of constructor parameters.
Definition object.h:619

ns3::Create
Ptr< T > Create(Ts &&... args)
Create class instances by constructors with varying numbers of arguments and return them by Ptr.
Definition ptr.h:436

ns3::QueueSizeUnit
QueueSizeUnit
Enumeration of the operating modes of queues.
Definition queue-size.h:33

NS_TEST_ASSERT_MSG_EQ
#define NS_TEST_ASSERT_MSG_EQ(actual, limit, msg)
Test that an actual and expected (limit) value are equal and report and abort if not.
Definition test.h:134

NS_TEST_EXPECT_MSG_EQ
#define NS_TEST_EXPECT_MSG_EQ(actual, limit, msg)
Test that an actual and expected (limit) value are equal and report if not.
Definition test.h:241

NS_TEST_ASSERT_MSG_NE
#define NS_TEST_ASSERT_MSG_NE(actual, limit, msg)
Test that an actual and expected (limit) value are not equal and report and abort if not.
Definition test.h:554

ns3::Seconds
Time Seconds(double value)
Construct a Time in the indicated unit.
Definition nstime.h:1344

g_tbfQueueTestSuite
TbfQueueDiscTestSuite g_tbfQueueTestSuite
the test suite

ns3
Every class exported by the ns3 library is enclosed in the ns3 namespace.

pktSize
uint32_t pktSize
packet size used for the simulation (in bytes)
Definition wifi-bianchi.cc:108