[ns] Fwd: Problem with trace-all in NS2

[Waleed Tuffaha]

Hello kanupriya,

you have an error in proc finish {} , you didn't do 'global tracefile1' , so
the following adjustments to the finish proc should make it work:


proc finish {} {
       global ns nf *tracefile1*
       $ns flush-trace
   #Close the trace file
       close $tracefile1
       close $nf
   #Execute nam on the trace file
       exec nam out.nam &
       exit 0
}




On Sun, Nov 16, 2008 at 4:15 AM, kanupriya kabra <kanu449 at gmail.com> wrote:

>
> hi
>
> I am not able to collect the traces using trace-all command in NS2 (on
> windows):
>
> Here is a snapshot of my file
>
> #Create a simulator object
> set ns [new Simulator]
>
> #Open the Trace file
> set tracefile1 [open out.tr w]
> $ns trace-all $tracefile1
>
> #Open the nam trace file
> set nf [open out.nam w]
> $ns namtrace-all $nf
>
> proc finish {} {
>        global ns nf
>        $ns flush-trace
>    #Close the trace file
>        close $tracefile1
>        close $nf
>    #Execute nam on the trace file
>        exec nam out.nam &
>        exit 0
> }
>
> ----rest of file
>
> But there is an error when I run this
>
> $ ns example4a.tcl
> ns: finish: can't read "tracefile1": no such variable
>    while executing
> "close $tracefile1"
>    (procedure "finish" line 5)
>    invoked from within
> "finish"
>
> I would really appreciate if anyone could help me out with this error?
> I am able to open the nam file using the open command but I am not able to
> find out why tracefile1 is not getting created.
>
> Regards
> Kanu
>



-- 
Waleed Tuffaha.