A Discrete-Event Network Simulator
API
Loading...
Searching...
No Matches
point-to-point-star.cc
Go to the documentation of this file.
1/*
2 * This program is free software; you can redistribute it and/or modify
3 * it under the terms of the GNU General Public License version 2 as
4 * published by the Free Software Foundation;
5 *
6 * This program is distributed in the hope that it will be useful,
7 * but WITHOUT ANY WARRANTY; without even the implied warranty of
8 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
9 * GNU General Public License for more details.
10 *
11 * You should have received a copy of the GNU General Public License
12 * along with this program; if not, write to the Free Software
13 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
14 */
15
16// Implement an object to create a star topology.
17
18#include "point-to-point-star.h"
19
20#include "ns3/constant-position-mobility-model.h"
21#include "ns3/ipv6-address-generator.h"
22#include "ns3/log.h"
23#include "ns3/node-list.h"
24#include "ns3/point-to-point-net-device.h"
25#include "ns3/vector.h"
26
27#include <cmath>
28#include <iostream>
29#include <sstream>
30
31namespace ns3
32{
33
34NS_LOG_COMPONENT_DEFINE("PointToPointStarHelper");
35
37{
38 m_hub.Create(1);
39 m_spokes.Create(numSpokes);
40
41 for (uint32_t i = 0; i < m_spokes.GetN(); ++i)
42 {
43 NetDeviceContainer nd = p2pHelper.Install(m_hub.Get(0), m_spokes.Get(i));
44 m_hubDevices.Add(nd.Get(0));
45 m_spokeDevices.Add(nd.Get(1));
46 }
47}
48
50{
51}
52
55{
56 return m_hub.Get(0);
57}
58
61{
62 return m_spokes.Get(i);
63}
64
67{
69}
70
73{
75}
76
79{
80 return m_hubInterfaces6.GetAddress(i, 1);
81}
82
85{
86 return m_spokeInterfaces6.GetAddress(i, 1);
87}
88
91{
92 return m_spokes.GetN();
93}
94
95void
97{
98 stack.Install(m_hub);
99 stack.Install(m_spokes);
100}
101
102void
104{
105 for (uint32_t i = 0; i < m_spokes.GetN(); ++i)
106 {
107 m_hubInterfaces.Add(address.Assign(m_hubDevices.Get(i)));
108 m_spokeInterfaces.Add(address.Assign(m_spokeDevices.Get(i)));
109 address.NewNetwork();
110 }
111}
112
113void
115{
116 Ipv6AddressGenerator::Init(addrBase, prefix);
117 Ipv6Address v6network;
118 Ipv6AddressHelper addressHelper;
119
120 for (uint32_t i = 0; i < m_spokes.GetN(); ++i)
121 {
122 v6network = Ipv6AddressGenerator::GetNetwork(prefix);
123 addressHelper.SetBase(v6network, prefix);
124
125 Ipv6InterfaceContainer ic = addressHelper.Assign(m_hubDevices.Get(i));
127 ic = addressHelper.Assign(m_spokeDevices.Get(i));
129
131 }
132}
133
134void
135PointToPointStarHelper::BoundingBox(double ulx, double uly, double lrx, double lry)
136{
137 double xDist;
138 double yDist;
139 if (lrx > ulx)
140 {
141 xDist = lrx - ulx;
142 }
143 else
144 {
145 xDist = ulx - lrx;
146 }
147 if (lry > uly)
148 {
149 yDist = lry - uly;
150 }
151 else
152 {
153 yDist = uly - lry;
154 }
155
156 // Place the hub
157 Ptr<Node> hub = m_hub.Get(0);
159 if (!hubLoc)
160 {
161 hubLoc = CreateObject<ConstantPositionMobilityModel>();
162 hub->AggregateObject(hubLoc);
163 }
164 Vector hubVec(ulx + xDist / 2.0, uly + yDist / 2.0, 0);
165 hubLoc->SetPosition(hubVec);
166
167 double spokeDist;
168 if (xDist > yDist)
169 {
170 spokeDist = yDist / 4.0;
171 }
172 else
173 {
174 spokeDist = xDist / 4.0;
175 }
176
177 double theta = 2 * M_PI / m_spokes.GetN();
178 for (uint32_t i = 0; i < m_spokes.GetN(); ++i)
179 {
180 Ptr<Node> spokeNode = m_spokes.Get(i);
182 spokeNode->GetObject<ConstantPositionMobilityModel>();
183 if (!spokeLoc)
184 {
185 spokeLoc = CreateObject<ConstantPositionMobilityModel>();
186 spokeNode->AggregateObject(spokeLoc);
187 }
188 Vector spokeVec(hubVec.x + std::cos(theta * i) * spokeDist,
189 hubVec.y + std::sin(theta * i) * spokeDist,
190 0);
191 spokeLoc->SetPosition(spokeVec);
192 }
193}
194
195} // namespace ns3
Mobility model for which the current position does not change once it has been set and until it is se...
aggregate IP/TCP/UDP functionality to existing Nodes.
A helper class to make life easier while doing simple IPv4 address assignment in scripts.
Ipv4 addresses are stored in host order in this class.
Definition: ipv4-address.h:42
void Add(const Ipv4InterfaceContainer &other)
Concatenate the entries in the other container with ours.
Ipv4Address GetAddress(uint32_t i, uint32_t j=0) const
static void Init(const Ipv6Address net, const Ipv6Prefix prefix, const Ipv6Address interfaceId="::1")
Initialise the base network and interfaceId for the generator.
static Ipv6Address GetNetwork(const Ipv6Prefix prefix)
Get the current network of the given Ipv6Prefix.
static Ipv6Address NextNetwork(const Ipv6Prefix prefix)
Get the next network according to the given Ipv6Prefix.
Helper class to auto-assign global IPv6 unicast addresses.
void SetBase(Ipv6Address network, Ipv6Prefix prefix, Ipv6Address base=Ipv6Address("::1"))
Set the base network number, network prefix, and base interface ID.
Ipv6InterfaceContainer Assign(const NetDeviceContainer &c)
Allocate an Ipv6InterfaceContainer with auto-assigned addresses.
Describes an IPv6 address.
Definition: ipv6-address.h:49
Keep track of a set of IPv6 interfaces.
Ipv6Address GetAddress(uint32_t i, uint32_t j) const
Get the address for the specified index.
void Add(Ptr< Ipv6 > ipv6, uint32_t interface)
Add a couple IPv6/interface.
Describes an IPv6 prefix.
Definition: ipv6-address.h:455
holds a vector of ns3::NetDevice pointers
void Add(NetDeviceContainer other)
Append the contents of another NetDeviceContainer to the end of this container.
Ptr< NetDevice > Get(uint32_t i) const
Get the Ptr<NetDevice> stored in this container at a given index.
uint32_t GetN() const
Get the number of Ptr<Node> stored in this container.
void Create(uint32_t n)
Create n nodes and append pointers to them to the end of this NodeContainer.
Ptr< Node > Get(uint32_t i) const
Get the Ptr<Node> stored in this container at a given index.
Build a set of PointToPointNetDevice objects.
NetDeviceContainer Install(NodeContainer c)
Ptr< Node > GetSpokeNode(uint32_t i) const
NodeContainer m_hub
Hub node.
Ipv6InterfaceContainer m_hubInterfaces6
IPv6 hub interfaces.
void InstallStack(InternetStackHelper stack)
Ipv4Address GetSpokeIpv4Address(uint32_t i) const
NodeContainer m_spokes
Spoke nodes.
NetDeviceContainer m_hubDevices
Hub node NetDevices.
Ipv4InterfaceContainer m_spokeInterfaces
IPv4 spoke nodes interfaces.
PointToPointStarHelper(uint32_t numSpokes, PointToPointHelper p2pHelper)
Create a PointToPointStarHelper in order to easily create star topologies using p2p links.
Ipv4InterfaceContainer m_hubInterfaces
IPv4 hub interfaces.
Ipv4Address GetHubIpv4Address(uint32_t i) const
void AssignIpv6Addresses(Ipv6Address network, Ipv6Prefix prefix)
Ipv6Address GetSpokeIpv6Address(uint32_t i) const
void BoundingBox(double ulx, double uly, double lrx, double lry)
Sets up the node canvas locations for every node in the star.
void AssignIpv4Addresses(Ipv4AddressHelper address)
Ipv6Address GetHubIpv6Address(uint32_t i) const
Ipv6InterfaceContainer m_spokeInterfaces6
IPv6 spoke nodes interfaces.
NetDeviceContainer m_spokeDevices
Spoke nodes NetDevices.
Smart pointer class similar to boost::intrusive_ptr.
Definition: ptr.h:77
#define NS_LOG_COMPONENT_DEFINE(name)
Define a Log component with a specific name.
Definition: log.h:202
Every class exported by the ns3 library is enclosed in the ns3 namespace.