patch: 8_paging

[Harald Welte]

Hi again,

On Sat, May 23, 2009 at 02:23:11PM +0800, Harald Welte wrote:
 
> On Thu, May 21, 2009 at 02:27:36PM +0200, Andreas.Eversberg wrote:
> > Paging refers to a BTS. To page a mobile phone, the current location is
> > required. If paging succeeds or expires, the BTS structure is also given
> > to the callback function (cbfn).
> > 
> > Because paging refers to a BTS, the cbfn (callback function) must
> > include a pointer to bts.
> 
> The paging response includes a lchan pointer, which can be resolved to the
> physical channel / timeslot and to the trx and finally to the BTS.  Is this
> not sufficient?

Ah, ok, in the case we do not successfully allocate a lchan, then that's
obviously NULL.

Still, when you call paging_request() you actually pass on a number of
parameters, including:

1) the BTS on which you want to page (whcih, indeed, is currently the
   BTS of the calling party rather than the called party).  So this parameter
   is likely to get removed soon.

2) The subscriber that was called.  This should be used by paging_request()
   to resolve the BTS that this subscriber was last seen/registered to.

3) a reference to the call, which is treated as an opaque pointer that
   is passed back as a reference when calling the call-back function.  So
   if the bts of the calling or called party needs to be known, it should
   probably be referenced from that data structure.

Or am I missing something?

-- 
- Harald Welte <laforge at gnumonks.org>           http://laforge.gnumonks.org/
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