A Discrete-Event Network Simulator
API
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sample-log-time-format.cc
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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
86#include "ns3/command-line.h"
87#include "ns3/log.h"
88#include "ns3/nstime.h"
89#include "ns3/random-variable-stream.h"
90#include "ns3/simulator.h"
91
92#include <map>
93
94using namespace ns3;
95
96namespace
97{
98
107void
108ReplacementTimePrinter(std::ostream& os)
109{
110 os << Simulator::Now().GetSeconds() << "s";
111}
112
114void
116{
117 std::cout << "Replacing time printer function after Simulator::Run ()" << std::endl;
119}
120
121} // unnamed namespace
122
123int
124main(int argc, char* argv[])
125{
126 bool replaceTimePrinter = false;
127 std::string resolution = "Time::NS";
128 LogComponentEnable("RandomVariableStream", LOG_LEVEL_ALL);
130
131 std::map<std::string, Time::Unit> resolutionMap = {
132 {"Time::US", Time::US},
133 {"Time::NS", Time::NS},
134 {"Time::PS", Time::PS},
135 {"Time::FS", Time::FS},
136 };
137
138 CommandLine cmd(__FILE__);
139 cmd.AddValue("replaceTimePrinter", "replace time printing function", replaceTimePrinter);
140 cmd.AddValue("resolution", "time resolution", resolution);
141 cmd.Parse(argc, argv);
142
143 auto search = resolutionMap.find(resolution);
144 if (search != resolutionMap.end())
145 {
146 Time::SetResolution(search->second);
147 }
148
149 Ptr<UniformRandomVariable> uniformRv = CreateObject<UniformRandomVariable>();
150
151 if (replaceTimePrinter)
152 {
154 }
155
156 Simulator::Schedule(NanoSeconds(1), &UniformRandomVariable::SetAntithetic, uniformRv, false);
157 Simulator::Schedule(NanoSeconds(123), &UniformRandomVariable::SetAntithetic, uniformRv, false);
159 &UniformRandomVariable::SetAntithetic,
160 uniformRv,
161 false);
163 &UniformRandomVariable::SetAntithetic,
164 uniformRv,
165 false);
166
169
170 return 0;
171}
Parse command-line arguments.
Definition: command-line.h:232
Smart pointer class similar to boost::intrusive_ptr.
Definition: ptr.h:78
static EventId Schedule(const Time &delay, FUNC f, Ts &&... args)
Schedule an event to expire after delay.
Definition: simulator.h:568
static void Destroy()
Execute the events scheduled with ScheduleDestroy().
Definition: simulator.cc:140
static Time Now()
Return the current simulation virtual time.
Definition: simulator.cc:199
static void Run()
Run the simulation.
Definition: simulator.cc:176
double GetSeconds() const
Get an approximation of the time stored in this instance in the indicated unit.
Definition: nstime.h:402
@ US
microsecond
Definition: nstime.h:118
@ PS
picosecond
Definition: nstime.h:120
@ FS
femtosecond
Definition: nstime.h:121
@ NS
nanosecond
Definition: nstime.h:119
static void SetResolution(Unit resolution)
Definition: time.cc:213
Time NanoSeconds(uint64_t value)
Construct a Time in the indicated unit.
Definition: nstime.h:1372
Time Seconds(double value)
Construct a Time in the indicated unit.
Definition: nstime.h:1336
void ReplaceTimePrinter()
Set ReplacementTimePrinter as the time printer for log messages.
void ReplacementTimePrinter(std::ostream &os)
Pre-ns-3.26 TimePrinter equivalent (was called LogTimePrinter).
Every class exported by the ns3 library is enclosed in the ns3 namespace.
void LogComponentEnable(const std::string &name, LogLevel level)
Enable the logging output associated with that log component.
Definition: log.cc:302
void LogSetTimePrinter(TimePrinter printer)
Set the TimePrinter function to be used to prepend log messages with the simulation time.
Definition: log.cc:496
@ LOG_LEVEL_ALL
Print everything.
Definition: log.h:116
@ LOG_PREFIX_TIME
Prefix all trace prints with simulation time.
Definition: log.h:119
void LogComponentEnableAll(LogLevel level)
Enable the logging output for all registered log components.
Definition: log.cc:320
ns cmd
Definition: second.py:33