Re: basic question(emergency)

[Zhenhai Duan <duan@cs.umn.edu>]

I do notice in the error message, the command was "new Tsw", while in your
Otcl linkage the difinition was "TclClass("TSW")". Others look fine for
me. 

--Zhenhai
On Tue, 17 Aug 1999, richard wrote:

> May I ask a basic question?
> 
> How to add a new class object(no matter C++ fomat or Tcl format)
> 
> The following is my adding steps.
> 
> (1). the creation  of C++ class:
> 
>  I edit a tsw.cc and tsw.h , add "tsw.o" to Makefile, and  compiled ok.
> 
> ------------------------------------------------------------------------------------
> 
> static class TSWClass : public TclClass {
>  public:
>         TSWClass() : TclClass("TSW") {}
>          TclObject* create(int, const char*const*) {
>                  return (new TSW());
>          }
>  }class_TSW;
>  (in tsw.cc)
> 
> ------------------------------------------------------------------------------------
> 
> 
> 
>  class TSW : public Connector {
>  public:
>          TSW();
>         int command(int argc, const char*const* argv);
>  protected:
>                          :
>                          :
>  }
>  (in tsw.h)
> ------------------------------------------------------------------------------------
> 
> 
> 
> (2). used by Tcl scripts:
> 
> I edit a tcl script include create this object ( "set tsw_ [new TSW]" in
> rr.tcl).
> 
> (3). error
>  ns return the error message of tcl script(rr.tcl)
> 
> ------------------------------------------------------------------------------------
> 
> [~/ns2/ns-2/tcl/test#]ns rr.tcl
> invalid command name "Tsw"
>     while executing
> "Tsw create _o72 "
>     invoked from within
> "catch "$className create $o $args" msg"
>     (procedure "new" line 3)
>     invoked from within
> "new Tsw"
>     (procedure "_o3" line 9)
>     (Simulator duplex-rio_tsw-link line 9)
>     invoked from within
> "$ns duplex-rio_tsw-link $n(2) $n(3) 5Mb 2ms"
>     (file "rr.tcl" line 44)
> [~/ns2/ns-2/tcl/test#]
> ------------------------------------------------------------------------------------
> 
> It cannot find the new object.I think there should be some other steps
> beteen (1) and (2).
> 
> Whould you please tell me the correct adding steps.
> 
> Thanks a lot.
> 
> ps: I have already read the Greis's tutorial and ns documentation
> chapter 8.
> They are talking about Agent and Packet adding and I have imitated their
> adding
> steps .It still does not work.
> 
> 
> 
> 
> 
>