void subscr_get_channel(struct gsm_subscriber *subscr,
int type, gsm_cbfn *cbfn, void *param)
{
struct subscr_request *request;
request = talloc(tall_sub_req_ctx, struct subscr_request);
if (!request) {
if (cbfn)
cbfn(GSM_HOOK_RR_PAGING, GSM_PAGING_OOM,
NULL, NULL, param);
return;
}
memset(request, 0, sizeof(*request));
request->subscr = subscr_get(subscr);
request->channel_type = type;
request->cbfn = cbfn;
request->param = param;
/*
* FIXME: We might be able to assign more than one
* channel, e.g. voice and SMS submit at the same
* time.
*/
if (!subscr->in_callback && llist_empty(&subscr->requests)) {
/* add to the list, send a request */
llist_add_tail(&request->entry, &subscr->requests);
subscr_send_paging_request(subscr);
} else {
/* this will be picked up later, from subscr_put_channel */
llist_add_tail(&request->entry, &subscr->requests);
}
}
void subscr_put_channel(struct gsm_lchan *lchan)
{
/*
* FIXME: Continue with other requests now... by checking
* the gsm_subscriber inside the gsm_lchan. Drop the ref count
* of the lchan after having asked the next requestee to handle
* the channel.
*/
/*
* FIXME: is the lchan is of a different type we could still
* issue an immediate assignment for another channel and then
* close this one.
*/
/*
* Currently we will drop the last ref of the lchan which
* will result in a channel release on RSL and we will start
* the paging. This should work most of the time as the MS
* will listen to the paging requests before we timeout
*/
put_lchan(lchan);
if (lchan->subscr && !llist_empty(&lchan->subscr->requests))
subscr_send_paging_request(lchan->subscr);
}
