Re: what does "proc cmu-trace" do in my tcl file

Google, tcl proc  
https://www.google.com/webhp?hl=all&gws_rd=ssl#hl=en&q=tcl+proc
→ →  http://wiki.tcl.tk/463  → → http://wiki.tcl.tk/38650  → → 
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» proc, a built-in Tcl command, creates a new command. «

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On Friday, May 29, 2015 at 4:05:59 PM UTC+2, mima Amira wrote:
>
> Hi every body
>
> please I would like to know what does this function exactely
>
>
> proc cmu-trace { ttype atype node } {
>     global ns_ tracefd
>
>     if { $tracefd == "" } {
>         return ""
>     }
>     set T [new CMUTrace/$ttype $atype]
>     $T target [$ns_ set nullAgent_]
>     $T attach $tracefd
>         $T set src_ [$node id]
>
>         $T node $node
>
>     return $T
> }
>
>
> thanks you
>
>
>