1 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
2 /*
3 * This program is free software; you can redistribute it and/or modify
4 * it under the terms of the GNU General Public License version 2 as
5 * published by the Free Software Foundation;
6 *
7 * This program is distributed in the hope that it will be useful,
8 * but WITHOUT ANY WARRANTY; without even the implied warranty of
9 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
10 * GNU General Public License for more details.
11 *
12 * You should have received a copy of the GNU General Public License
13 * along with this program; if not, write to the Free Software
14 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
15 */
16
17 #include "ns3/object.h"
18 #include "ns3/uinteger.h"
19 #include "ns3/traced-value.h"
20 #include "ns3/trace-source-accessor.h"
21
22 #include <iostream>
23
24 using namespace ns3;
25
26 class MyObject : public Object
27 {
28 public:
29 /**
30 * Register this type.
31 * \return The TypeId.
32 */
GetTypeId(void)33 static TypeId GetTypeId (void)
34 {
35 static TypeId tid = TypeId ("MyObject")
36 .SetParent<Object> ()
37 .SetGroupName ("Tutorial")
38 .AddConstructor<MyObject> ()
39 .AddTraceSource ("MyInteger",
40 "An integer value to trace.",
41 MakeTraceSourceAccessor (&MyObject::m_myInt),
42 "ns3::TracedValueCallback::Int32")
43 ;
44 return tid;
45 }
46
MyObject()47 MyObject () {}
48 TracedValue<int32_t> m_myInt;
49 };
50
51 void
IntTrace(int32_t oldValue,int32_t newValue)52 IntTrace (int32_t oldValue, int32_t newValue)
53 {
54 std::cout << "Traced " << oldValue << " to " << newValue << std::endl;
55 }
56
57 int
main(int argc,char * argv[])58 main (int argc, char *argv[])
59 {
60 Ptr<MyObject> myObject = CreateObject<MyObject> ();
61 myObject->TraceConnectWithoutContext ("MyInteger", MakeCallback (&IntTrace));
62
63 myObject->m_myInt = 1234;
64 }
65