/src/csma/examples/csma-packet-socket.cc
C++ | 134 lines | 74 code | 23 blank | 37 comment | 0 complexity | 511a0436885e6f25a81a1487c313e31c MD5 | raw file
Possible License(s): GPL-2.0
- /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
- /*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation;
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
- //
- // Network topology
- //
- // n0 n1 n2 n3
- // | | | |
- // =====================
- //
- // - Two packet socket flows: from n0 to n1 and from n3 to n0
- // - Default 512 byte packets generated by traffic generator
- // - Output from the PacketSink trace source will be sent to the
- // csma-packet-socket-sink.tr file
- // ASCII trace output will be sent to the csma-packet-socket.tr file
- #include <iostream>
- #include <fstream>
- #include <string>
- #include <cassert>
- #include "ns3/core-module.h"
- #include "ns3/network-module.h"
- #include "ns3/csma-module.h"
- #include "ns3/applications-module.h"
- using namespace ns3;
- NS_LOG_COMPONENT_DEFINE ("CsmaPacketSocketExample");
- std::ofstream g_os;
- static void
- SinkRx (std::string path, Ptr<const Packet> p, const Address &address)
- {
- g_os << p->GetSize () << std::endl;
- }
- int
- main (int argc, char *argv[])
- {
- #if 0
- LogComponentEnable ("CsmaPacketSocketExample", LOG_LEVEL_INFO);
- #endif
- CommandLine cmd;
- cmd.Parse (argc, argv);
- g_os.open ("csma-packet-socket-sink.tr",std::ios_base::binary | std::ios_base::out);
- // Here, we will explicitly create four nodes.
- NS_LOG_INFO ("Create nodes.");
- NodeContainer nodes;
- nodes.Create (4);
- PacketSocketHelper packetSocket;
- packetSocket.Install (nodes);
- // create the shared medium used by all csma devices.
- NS_LOG_INFO ("Create channels.");
- Ptr<CsmaChannel> channel = CreateObjectWithAttributes<CsmaChannel> (
- "DataRate", DataRateValue (DataRate (5000000)),
- "Delay", TimeValue (MilliSeconds (2)));
- // use a helper function to connect our nodes to the shared channel.
- NS_LOG_INFO ("Build Topology.");
- CsmaHelper csma;
- csma.SetDeviceAttribute ("EncapsulationMode", StringValue ("Llc"));
- NetDeviceContainer devs = csma.Install (nodes, channel);
- NS_LOG_INFO ("Create Applications.");
- // Create the OnOff application to send raw datagrams
- PacketSocketAddress socket;
- socket.SetSingleDevice (devs.Get (0)->GetIfIndex ());
- socket.SetPhysicalAddress (devs.Get (1)->GetAddress ());
- socket.SetProtocol (2);
- OnOffHelper onoff ("ns3::PacketSocketFactory", Address (socket));
- onoff.SetAttribute ("OnTime", RandomVariableValue (ConstantVariable (1.0)));
- onoff.SetAttribute ("OffTime", RandomVariableValue (ConstantVariable (0.0)));
- ApplicationContainer apps = onoff.Install (nodes.Get (0));
- apps.Start (Seconds (1.0));
- apps.Stop (Seconds (10.0));
- socket.SetSingleDevice (devs.Get (3)->GetIfIndex ());
- socket.SetPhysicalAddress (devs.Get (0)->GetAddress ());
- socket.SetProtocol (3);
- onoff.SetAttribute ("Remote", AddressValue (socket));
- onoff.SetAttribute ("OffTime", RandomVariableValue (ConstantVariable (0.0)));
- apps = onoff.Install (nodes.Get (3));
- apps.Start (Seconds (1.0));
- apps.Stop (Seconds (10.0));
- // Install packet sink on node 0 to receive packets from node 1
- PacketSinkHelper sink = PacketSinkHelper ("ns3::PacketSocketFactory",
- socket);
- apps = sink.Install (nodes.Get (0));
- apps.Start (Seconds (0.0));
- apps.Stop (Seconds (20.0));
- // While the below trace sink is hooked to all nodes (the wildcard "*")
- // only one packet sink (on node 0) is actually added above, so
- // only the receive events on node 0 will be traced
- Config::Connect ("/NodeList/*/ApplicationList/*/$ns3::PacketSink/Rx",
- MakeCallback (&SinkRx));
-
- // Configure tracing of all enqueue, dequeue, and NetDevice receive events
- // Trace output will be sent to the csma-packet-socket.tr file
- NS_LOG_INFO ("Configure Tracing.");
- AsciiTraceHelper ascii;
- csma.EnableAsciiAll (ascii.CreateFileStream ("csma-packet-socket.tr"));
- NS_LOG_INFO ("Run Simulation.");
- Simulator::Run ();
- Simulator::Destroy ();
- NS_LOG_INFO ("Done.");
- g_os.close ();
- return 0;
- }