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/*
* Copyright (C) 2019-2023 by Sukchan Lee <acetcom@gmail.com>
*
* This file is part of Open5GS.
*
* 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 General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#include "hss-sm.h"
#include "hss-context.h"
#include "hss-event.h"
#include "hss-timer.h"
#define DB_POLLING_TIME ogs_time_from_msec(100)
static ogs_timer_t *t_db_polling = NULL;
void hss_state_initial(ogs_fsm_t *s, hss_event_t *e)
{
hss_sm_debug(e);
ogs_assert(s);
#if MONGOC_CHECK_VERSION(1, 9, 0)
if (hss_self()->use_mongodb_change_stream) {
ogs_dbi_collection_watch_init();
t_db_polling = ogs_timer_add(ogs_app()->timer_mgr,
hss_timer_dbi_poll_change_stream, 0);
ogs_assert(t_db_polling);
ogs_timer_start(t_db_polling, DB_POLLING_TIME);
OGS_FSM_TRAN(s, &hss_state_operational);
}
#endif
}
void hss_state_final(ogs_fsm_t *s, hss_event_t *e)
{
hss_sm_debug(e);
if (t_db_polling)
ogs_timer_delete(t_db_polling);
ogs_assert(s);
}
void hss_state_operational(ogs_fsm_t *s, hss_event_t *e)
{
hss_sm_debug(e);
ogs_assert(s);
switch (e->id) {
case OGS_FSM_ENTRY_SIG:
break;
case OGS_FSM_EXIT_SIG:
if (t_db_polling) {
ogs_timer_stop(t_db_polling);
}
break;
case HSS_EVENT_DBI_POLL_TIMER:
ogs_assert(e);
switch(e->timer_id) {
case HSS_TIMER_DBI_POLL_CHANGE_STREAM:
hss_db_poll_change_stream();
ogs_timer_start(t_db_polling, DB_POLLING_TIME);
break;
default:
ogs_error("Unknown timer[%s:%d]",
ogs_timer_get_name(e->timer_id), e->timer_id);
}
break;
case HSS_EVENT_DBI_MESSAGE:
ogs_assert(e);
ogs_assert(e->dbi.document);
hss_handle_change_event(e->dbi.document);
bson_destroy(e->dbi.document);
break;
default:
ogs_error("No handler for event %s", hss_event_get_name(e));
break;
}
}
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