Re: [ns] question about #define DEBUG and printout of variable

["Joo-Han Song" <sjh1swj@telus.net>]

Thanks Lloyd for your quick and kind answer.

I still can't fix my problem.
I am doing my simulation about modified AODV routing mechanism. I tried to
printout some values of existing variable in ~ns/ns-2.1b8a/aodv.cc like:

void
AODV::recvRequest(Packet *p)
{

  Tcl& tcl = Tcl::instance();
  Node *thisnode = Node::get_node_by_address(index);
  MobileNode *node_;
  struct hdr_cmn *ch = HDR_CMN(p);
        struct hdr_ip *ih = HDR_IP(p);
        struct hdr_aodv_request *rq = HDR_AODV_REQUEST(p);
     rt_entry *rt;
  double x = 0.0, y = 0.0, z = 0.0;
  node_ -> getLoc(&x, &y, &z);
  printf("time = %.9f, x = %.2f, y = %.2f, z = %.2f, this node = %d\n",
CURRENT_TIME, x, y, z, index);
  tcl.evalf("time = %.9f, x = %.2f, y = %.2f, z = %.2f, this node = %d\n",
CURRENT_TIME, x, y, z, index);

.............
.............
.............
}

As you might see from above tcl script, I tried to print out the value of
CURRENT_TIME, x, y, z and index whenever recvRequest function is called.
But there is nothing happened during my simulation.
How can I see this values or make this value to be stored in specific file?
Could you help me?
Thank you in advance.

Joo-Han

----- Original Message -----
From: "Lloyd Wood" <l.wood@eim.surrey.ac.uk>
To: "Joo-Han Song" <sjh1swj@telus.net>
Cc: "ns-users" <ns-users@ISI.EDU>
Sent: Tuesday, December 25, 2001 12:37 PM
Subject: Re: [ns] question about #define DEBUG


> On Tue, 25 Dec 2001, Joo-Han Song wrote:
>
> > The reason why I am trying to use DEBUG option is that I hope to trace a
> > specific variable during my simulation whenever specific function is
called.
> > So is there any method I can use to trace the changes of specific
variable?
>
> print it out; the debug class variable allows you to do
> if (debug_) printf("blah %i", metasyntacthing);
>
> only on that variable for the particular objects you are interested in
> (once you have done/scheduled $object set debug_ 1), rather than say
> the other thousand or so objects your simulate-the-internet simulation
> might also have running. Easier than trying to print out info to
> identify which object you're looking at.
>
> Alternatively, there's gdb and its trace and
> breakpoint functionality...
>
> L.
>
> <L.Wood@surrey.ac.uk>PGP<http://www.ee.surrey.ac.uk/Personal/L.Wood/>
>