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/*
* Copyright (C) 2021 by sysmocom - s.f.m.c. GmbH <info@sysmocom.de>
* Author: Oliver Smith
*
* 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 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/>.
*
*/
#include <string.h>
#include <osmocom/core/logging.h>
#include <osmocom/core/talloc.h>
#include <osmocom/core/tdef.h>
#include <osmocom/core/utils.h>
#include <gprs_debug.h>
#include <gprs_pcu.h>
#include <bts_pch_timer.h>
static struct bts_pch_timer *bts_pch_timer_get(struct gprs_rlcmac_bts *bts, const char *imsi)
{
struct bts_pch_timer *p;
llist_for_each_entry(p, &bts->pch_timer, entry) {
if (strcmp(p->imsi, imsi) == 0)
return p;
}
return NULL;
}
static void bts_pch_timer_remove(struct bts_pch_timer *p)
{
osmo_timer_del(&p->T3113);
llist_del(&p->entry);
LOGP(DPCU, LOGL_DEBUG, "PCH paging timer stopped for IMSI=%s\n", p->imsi);
talloc_free(p);
}
static void T3113_callback(void *data)
{
struct bts_pch_timer *p = data;
LOGP(DPCU, LOGL_INFO, "PCH paging timeout for IMSI=%s\n", p->imsi);
bts_do_rate_ctr_inc(p->bts, CTR_PCH_REQUESTS_TIMEDOUT);
bts_pch_timer_remove(p);
}
void bts_pch_timer_start(struct gprs_rlcmac_bts *bts, const char *imsi)
{
if (bts_pch_timer_get(bts, imsi))
return;
struct bts_pch_timer *p;
p = talloc_zero(bts, struct bts_pch_timer);
llist_add_tail(&p->entry, &bts->pch_timer);
osmo_strlcpy(p->imsi, imsi, sizeof(p->imsi));
p->bts = bts;
struct osmo_tdef *tdef = osmo_tdef_get_entry(the_pcu->T_defs, 3113);
OSMO_ASSERT(tdef);
osmo_timer_setup(&p->T3113, T3113_callback, p);
osmo_timer_schedule(&p->T3113, tdef->val, 0);
LOGP(DPCU, LOGL_DEBUG, "PCH paging timer started for IMSI=%s\n", p->imsi);
}
void bts_pch_timer_stop(struct gprs_rlcmac_bts *bts, const char *imsi)
{
struct bts_pch_timer *p = bts_pch_timer_get(bts, imsi);
if (p)
bts_pch_timer_remove(p);
}
void bts_pch_timer_stop_all(struct gprs_rlcmac_bts *bts)
{
struct bts_pch_timer *p, *n;
llist_for_each_entry_safe(p, n, &bts->pch_timer, entry) {
bts_pch_timer_remove(p);
}
}
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