[Click] read handler with parameters

[sam barker]

Hi Eddie,
Thanks for the tip.I am able to pass a value.

Is it possible to for me to pass more that one argument through the
set_handler?

Cheers,
Sam

On Jan 16, 2008 10:24 AM, Eddie Kohler <kohler at cs.ucla.edu> wrote:

> If you want your read handler to take parameters, you need to use
> set_handler() and supply Handler::OP_READ | Handler::READ_PARAM.
>
>
> http://www.read.cs.ucla.edu/click/doxygen/classElement.html#4b0cd1711fb51b8aba0f2e01f3eba9c0
>
> Eddie
>
>
> sam barker wrote:
> > Hi Beyers,
> > I tried it but got the error "read handlers does not take parameters".
> >
> > Is there anyway way to call the read handler with parameters.[Suppose if
> you
> > want to return  a value  corresponding to the passed parameter]
> >
> > I was going through a manual called coding concepts which clearly states
> > that "You can't call a ReadHandler with arguments"
> >
> >
> > Cheers,
> > Sam
> > On Jan 15, 2008 9:01 PM, Beyers Cronje <bcronje at gmail.com> wrote:
> >
> >> Hi Sam,
> >>
> >> I've never passed a parameter to a read handler before, so this might
> be
> >> wrong....
> >>
> >> Your telnet command should be:
> >>
> >> read readelement_name.a_handle 1
> >>
> >> Also I believe the prototype of add_handlers is onle 'virtual void
> >> add_handlers();'
> >>
> >> Beyers
> >>
> >> On Jan 15, 2008 4:11 AM, sam barker <sam.barker0 at gmail.com> wrote:
> >>
> >>> Hi All,
> >>> I was trying out the read handler with a parameter and I seem to be
> >>> stuck.
> >>>
> >>> Basically I wan t to  pass an int parameter to my_func().
> >>>
> >>> After I telnet into the localhost how do I call the function?.
> >>> I had used  read readelement_name.a_handle(1);
> >>>
> >>> The the partial code of my .cc file is below
> >>>
> >>>
> >>> String readelement::handle(Element *e, void *thunk){
> >>>    readelement * me = (readelement *) e;
> >>>
> >>>    int *i;
> >>>    i=(int *)thunk;
> >>>    return me->my_func(i);
> >>> }
> >>> void readelement::add_handlers(void * thunk){
> >>>    add_read_handler("a_handle", &handle, (void *)thunk);
> >>> }
> >>>
> >>> Regards,
> >>> Sam
> >>> _______________________________________________
> >>> click mailing list
> >>> click at amsterdam.lcs.mit.edu
> >>> https://amsterdam.lcs.mit.edu/mailman/listinfo/click
> >>>
> >>
> > _______________________________________________
> > click mailing list
> > click at amsterdam.lcs.mit.edu
> > https://amsterdam.lcs.mit.edu/mailman/listinfo/click
>