Files
unison/examples/tutorial/fourth.cc
2022-10-14 14:13:12 +00:00

72 lines
2.0 KiB
C++

/*
* 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
*/
#include "ns3/object.h"
#include "ns3/simulator.h"
#include "ns3/trace-source-accessor.h"
#include "ns3/traced-value.h"
#include "ns3/uinteger.h"
#include <iostream>
using namespace ns3;
/**
* Tutorial 4 - a simple Object to show how to hook a trace.
*/
class MyObject : public Object
{
public:
/**
* Register this type.
* \return The TypeId.
*/
static TypeId GetTypeId()
{
static TypeId tid = TypeId("MyObject")
.SetParent<Object>()
.SetGroupName("Tutorial")
.AddConstructor<MyObject>()
.AddTraceSource("MyInteger",
"An integer value to trace.",
MakeTraceSourceAccessor(&MyObject::m_myInt),
"ns3::TracedValueCallback::Int32");
return tid;
}
MyObject()
{
}
TracedValue<int32_t> m_myInt; //!< The traced value.
};
void
IntTrace(int32_t oldValue, int32_t newValue)
{
std::cout << "Traced " << oldValue << " to " << newValue << std::endl;
}
int
main(int argc, char* argv[])
{
Ptr<MyObject> myObject = CreateObject<MyObject>();
myObject->TraceConnectWithoutContext("MyInteger", MakeCallback(&IntTrace));
myObject->m_myInt = 1234;
return 0;
}