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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 "sbi-path.h"
static ogs_thread_t *thread;
static void nrf_main(void *data);
static int initialized = 0;
int nrf_initialize(void)
{
int rv;
#define APP_NAME "nrf"
rv = ogs_app_parse_local_conf(APP_NAME);
if (rv != OGS_OK) return rv;
ogs_sbi_context_init(OpenAPI_nf_type_NRF);
nrf_context_init();
rv = ogs_log_config_domain(
ogs_app()->logger.domain, ogs_app()->logger.level);
if (rv != OGS_OK) return rv;
rv = ogs_sbi_context_parse_config(APP_NAME, NULL, NULL);
if (rv != OGS_OK) return rv;
rv = nrf_context_parse_config();
if (rv != OGS_OK) return rv;
rv = nrf_sbi_open();
if (rv != OGS_OK) return rv;
thread = ogs_thread_create(nrf_main, NULL);
if (!thread) return OGS_ERROR;
initialized = 1;
return OGS_OK;
}
static ogs_timer_t *t_termination_holding = NULL;
static void event_termination(void)
{
/*
* Add business-login during Daemon termination
*/
/* Start holding timer */
t_termination_holding = ogs_timer_add(ogs_app()->timer_mgr, NULL, NULL);
ogs_assert(t_termination_holding);
#define TERMINATION_HOLDING_TIME ogs_time_from_msec(300)
ogs_timer_start(t_termination_holding, TERMINATION_HOLDING_TIME);
/* Sending termination event to the queue */
ogs_queue_term(ogs_app()->queue);
ogs_pollset_notify(ogs_app()->pollset);
}
void nrf_terminate(void)
{
if (!initialized) return;
/* Daemon terminating */
event_termination();
ogs_thread_destroy(thread);
ogs_timer_delete(t_termination_holding);
nrf_sbi_close();
nrf_context_final();
ogs_sbi_context_final();
}
static void nrf_main(void *data)
{
ogs_fsm_t nrf_sm;
int rv;
ogs_fsm_init(&nrf_sm, nrf_state_initial, nrf_state_final, 0);
for ( ;; ) {
ogs_pollset_poll(ogs_app()->pollset,
ogs_timer_mgr_next(ogs_app()->timer_mgr));
/*
* After ogs_pollset_poll(), ogs_timer_mgr_expire() must be called.
*
* The reason is why ogs_timer_mgr_next() can get the corrent value
* when ogs_timer_stop() is called internally in ogs_timer_mgr_expire().
*
* You should not use event-queue before ogs_timer_mgr_expire().
* In this case, ogs_timer_mgr_expire() does not work
* because 'if rv == OGS_DONE' statement is exiting and
* not calling ogs_timer_mgr_expire().
*/
ogs_timer_mgr_expire(ogs_app()->timer_mgr);
for ( ;; ) {
nrf_event_t *e = NULL;
rv = ogs_queue_trypop(ogs_app()->queue, (void**)&e);
ogs_assert(rv != OGS_ERROR);
if (rv == OGS_DONE)
goto done;
if (rv == OGS_RETRY)
break;
ogs_assert(e);
ogs_fsm_dispatch(&nrf_sm, e);
ogs_event_free(e);
}
}
done:
ogs_fsm_fini(&nrf_sm, 0);
}
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