A Discrete-Event Network Simulator
API
main-simple.cc
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1 /*
2  * Copyright (c) 2007 INRIA
3  *
4  * This program is free software; you can redistribute it and/or modify
5  * it under the terms of the GNU General Public License version 2 as
6  * published by the Free Software Foundation;
7  *
8  * This program is distributed in the hope that it will be useful,
9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11  * GNU General Public License for more details.
12  *
13  * You should have received a copy of the GNU General Public License
14  * along with this program; if not, write to the Free Software
15  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
16  *
17  * Author: Mathieu Lacage <mathieu.lacage@cutebugs.net>
18  */
19 
20 #include "ns3/core-module.h"
21 #include "ns3/internet-module.h"
22 #include "ns3/network-module.h"
23 
24 #include <iostream>
25 
26 using namespace ns3;
27 
38 static void
39 GenerateTraffic(Ptr<Socket> socket, int32_t size)
40 {
41  if (size <= 0)
42  {
43  socket->Close();
44  return;
45  }
46 
47  std::cout << "at=" << Simulator::Now().GetSeconds() << "s, tx bytes=" << size << std::endl;
48  socket->Send(Create<Packet>(size));
49  Simulator::Schedule(Seconds(0.5), &GenerateTraffic, socket, size - 50);
50 }
51 
56 static void
58 {
59  Ptr<Packet> packet;
60  while ((packet = socket->Recv()))
61  {
62  std::cout << "at=" << Simulator::Now().GetSeconds() << "s, rx bytes=" << packet->GetSize()
63  << std::endl;
64  }
65 }
66 
67 int
68 main(int argc, char* argv[])
69 {
70  CommandLine cmd(__FILE__);
71  cmd.Parse(argc, argv);
72 
73  NodeContainer c;
74  c.Create(1);
75 
77  internet.Install(c);
78 
79  TypeId tid = TypeId::LookupByName("ns3::UdpSocketFactory");
82  sink->Bind(local);
83 
84  Ptr<Socket> source = Socket::CreateSocket(c.Get(0), tid);
86  source->Connect(remote);
87 
88  GenerateTraffic(source, 500);
89  sink->SetRecvCallback(MakeCallback(&SocketPrinter));
90 
92 
94 
95  return 0;
96 }
Parse command-line arguments.
Definition: command-line.h:232
an Inet address class
aggregate IP/TCP/UDP functionality to existing Nodes.
static Ipv4Address GetLoopback()
static Ipv4Address GetAny()
keep track of a set of node pointers.
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.
uint32_t GetSize() const
Returns the the size in bytes of the packet (including the zero-filled initial payload).
Definition: packet.h:861
static EventId Schedule(const Time &delay, FUNC f, Ts &&... args)
Schedule an event to expire after delay.
Definition: simulator.h:571
static void Destroy()
Execute the events scheduled with ScheduleDestroy().
Definition: simulator.cc:142
static Time Now()
Return the current simulation virtual time.
Definition: simulator.cc:208
static void Run()
Run the simulation.
Definition: simulator.cc:178
virtual int Send(Ptr< Packet > p, uint32_t flags)=0
Send data (or dummy data) to the remote host.
virtual Ptr< Packet > Recv(uint32_t maxSize, uint32_t flags)=0
Read data from the socket.
virtual int Connect(const Address &address)=0
Initiate a connection to a remote host.
static Ptr< Socket > CreateSocket(Ptr< Node > node, TypeId tid)
This method wraps the creation of sockets that is performed on a given node by a SocketFactory specif...
Definition: socket.cc:72
virtual int Close()=0
Close a socket.
double GetSeconds() const
Get an approximation of the time stored in this instance in the indicated unit.
Definition: nstime.h:403
a unique identifier for an interface.
Definition: type-id.h:59
static TypeId LookupByName(std::string name)
Get a TypeId by name.
Definition: type-id.cc:835
Time Seconds(double value)
Construct a Time in the indicated unit.
Definition: nstime.h:1326
static void GenerateTraffic(Ptr< Socket > socket, int32_t size)
Generates traffic.
Definition: main-simple.cc:39
static void SocketPrinter(Ptr< Socket > socket)
Prints the packets received by a socket.
Definition: main-simple.cc:57
Every class exported by the ns3 library is enclosed in the ns3 namespace.
Callback< R, Args... > MakeCallback(R(T::*memPtr)(Args...), OBJ objPtr)
Build Callbacks for class method members which take varying numbers of arguments and potentially retu...
Definition: callback.h:704
cmd
Definition: second.py:40
Ptr< PacketSink > sink
Pointer to the packet sink application.
Definition: wifi-tcp.cc:55