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/* Paging helper and manager.... */
/* (C) 2009 by Holger Hans Peter Freyther <zecke@selfish.org>
* All Rights Reserved
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#ifndef PAGING_H
#define PAGING_H
#include <stdlib.h>
#include <string.h>
#include <osmocom/core/linuxlist.h>
#include <osmocom/core/timer.h>
#include <osmocom/bsc/gsm_data.h>
#include <osmocom/bsc/bsc_subscriber.h>
struct bsc_msc_data;
/**
* A pending paging request
*/
struct gsm_paging_request {
/* list_head for list of all paging requests */
struct llist_head entry;
/* the subscriber which we're paging. Later gsm_paging_request
* should probably become a part of the bsc_subsrc struct? */
struct bsc_subscr *bsub;
/* back-pointer to the BTS on which we are paging */
struct gsm_bts *bts;
/* what kind of channel type do we ask the MS to establish */
int chan_type;
/* Timer 3113: how long do we try to page? */
struct osmo_timer_list T3113;
/* How often did we ask the BTS to page? */
int attempts;
/* MSC that has issued this paging */
struct bsc_msc_data *msc;
};
/* schedule paging request */
int paging_request(struct gsm_network *network, struct bsc_subscr *bsub, int type,
struct bsc_msc_data *msc);
int paging_request_bts(struct gsm_bts *bts, struct bsc_subscr *bsub, int type,
struct bsc_msc_data *msc);
/* stop paging requests */
void paging_request_stop(struct llist_head *bts_list,
struct gsm_bts *_bts, struct bsc_subscr *bsub,
struct gsm_subscriber_connection *conn,
struct msgb *msg);
/* update paging load */
void paging_update_buffer_space(struct gsm_bts *bts, uint16_t);
/* pending paging requests */
unsigned int paging_pending_requests_nr(struct gsm_bts *bts);
struct bsc_msc_data *paging_get_msc(struct gsm_bts *bts, struct bsc_subscr *bsub);
void paging_flush_bts(struct gsm_bts *bts, struct bsc_msc_data *msc);
void paging_flush_network(struct gsm_network *net, struct bsc_msc_data *msc);
#endif
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