[sr-dev] how to assign value to a pvar?
Daniel-Constantin Mierla
miconda at gmail.com
Tue Nov 10 11:10:53 CET 2009
there is an example in group module - get_user_group() function.
However, you can do a new pseudo-variable:
$rr_count or so, where get function counts the number of routes.
The you do not need to use a function to set a variable, you can do:
$var(x) = $rr_count;
Cheers,
Daniel
On 10.11.2009 4:47 Uhr, Juha Heinanen wrote:
> it was easy to write the code that counts the number of record routes in
> a message. first i though that i can return the count as result of the
> script function, but that didn't work out because if script function
> returns 0, it will terminate execution of the script.
>
> so i though to give the function a pvar argument to which the count
> is stored, e.g.,
>
> rr_count("$var(count)");
>
> so far i have not been able to assign the count to the pvar argument and
> have already spent three hours on such a simple assignment statement. in
> pvar.h there is function
>
> int pv_set_spec_value(struct sip_msg* msg, pv_spec_p sp, int op,
> pv_value_t *value);
>
> that sounds like it might do the trick, but there is no documentation on
> op argument and i have not yet found in sr sources any place there that
> function is really used. also i have not found in any of sr modules any
> script function that would assign something to a pvar argument? is
> there one so that i could take a look or it that an impossible thing to
> do?
>
> i have tried various versions, such as
>
> pv_val.ri = count;
> pv_val.flags = PV_VAL_INT;
> if (_count) {
> if (pv_set_spec_value(msg, (pv_spec_t *)_count, EQ_T, &pv_val) == 0) {
>
> where _count is pvar fixed up argument of rr_count function, but no luck
> so far. i just get
>
> Nov 10 05:42:51 localhost /usr/sbin/sip-proxy[27707]: ERROR: pv [pv_svar.c:117]: out of pkg mem!
> Nov 10 05:42:51 localhost /usr/sbin/sip-proxy[27707]: ERROR: pv [pv_core.c:1620]: error - cannot set svar [tmp]
>
> can anyone help here? if not, i'll have to make rr_count to return the
> actual count + 1 so that i can return it as result of the rr_count
> function.
>
> -- juha
>
> _______________________________________________
> sr-dev mailing list
> sr-dev at lists.sip-router.org
> http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-dev
>
>
--
Daniel-Constantin Mierla
* http://www.asipto.com/
More information about the sr-dev
mailing list