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examples: Add author/copyright; improve logging and comments

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This commit is contained in:
Tom Henderson
2021-04-16 07:56:21 -07:00
parent a773a15d48
commit 5fc7a1be61
2 changed files with 42 additions and 60 deletions
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51
examples/udp-client-server/udp-trace-client-server.cc
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@@ -1,5 +1,7 @@
/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/*
* Copyright (c) 2009 INRIA
*
* 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;
@@ -12,6 +14,8 @@
* 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
*
* Author: Mohamed Amine Ismail <amine.ismail@sophia.inria.fr>
*/
// Network topology
@@ -19,9 +23,11 @@
// n0 n1
// | |
// =======
// LAN
// LAN (CSMA)
//
// - UDP flows from n0 to n1
// - UDP flow from n0 to n1 of packets drawn from a trace file
// -- option to use IPv4 or IPv6 addressing
// -- option to disable logging statements
#include <fstream>
#include "ns3/core-module.h"
@@ -36,42 +42,36 @@ NS_LOG_COMPONENT_DEFINE ("UdpTraceClientServerExample");
int
main (int argc, char *argv[])
{
//
// Enable logging for UdpClient and
//
LogComponentEnable ("UdpTraceClient", LOG_LEVEL_INFO);
LogComponentEnable ("UdpServer", LOG_LEVEL_INFO);
// Declare variables used in command-line arguments
bool useV6 = false;
bool logging = true;
Address serverAddress;
CommandLine cmd (__FILE__);
cmd.AddValue ("useIpv6", "Use Ipv6", useV6);
cmd.AddValue ("logging", "Enable logging", logging);
cmd.Parse (argc, argv);
//
// Explicitly create the nodes required by the topology (shown above).
//
NS_LOG_INFO ("Create nodes.");
if (logging)
{
LogComponentEnable ("UdpClient", LOG_LEVEL_INFO);
LogComponentEnable ("UdpServer", LOG_LEVEL_INFO);
}
NS_LOG_INFO ("Create nodes in above topology.");
NodeContainer n;
n.Create (2);
InternetStackHelper internet;
internet.Install (n);
NS_LOG_INFO ("Create channels.");
//
// Explicitly create the channels required by the topology (shown above).
//
NS_LOG_INFO ("Create channel between the two nodes.");
CsmaHelper csma;
csma.SetChannelAttribute ("DataRate", DataRateValue (DataRate (5000000)));
csma.SetChannelAttribute ("Delay", TimeValue (MilliSeconds (2)));
csma.SetDeviceAttribute ("Mtu", UintegerValue (1500));
NetDeviceContainer d = csma.Install (n);
//
// We've got the "hardware" in place. Now we need to add IP addresses.
//
NS_LOG_INFO ("Assign IP Addresses.");
if (useV6 == false)
{
@@ -88,20 +88,14 @@ main (int argc, char *argv[])
serverAddress = Address(i6.GetAddress (1,1));
}
NS_LOG_INFO ("Create Applications.");
//
// Create one udpServer applications on node one.
//
NS_LOG_INFO ("Create UdpServer application on node 1.");
uint16_t port = 4000;
UdpServerHelper server (port);
ApplicationContainer apps = server.Install (n.Get (1));
apps.Start (Seconds (1.0));
apps.Stop (Seconds (10.0));
//
// Create one UdpTraceClient application to send UDP datagrams from node zero to
// node one.
//
NS_LOG_INFO ("Create UdpClient application on node 0 to send to node 1.");
uint32_t MaxPacketSize = 1472; // Back off 20 (IP) + 8 (UDP) bytes from MTU
UdpTraceClientHelper client (serverAddress, port,"");
client.SetAttribute ("MaxPacketSize", UintegerValue (MaxPacketSize));
@@ -109,9 +103,6 @@ main (int argc, char *argv[])
apps.Start (Seconds (2.0));
apps.Stop (Seconds (10.0));
//
// Now, do the actual simulation.
//
NS_LOG_INFO ("Run Simulation.");
Simulator::Run ();
Simulator::Destroy ();