forked from acouzens/open5gs
151 lines
4.1 KiB
C
151 lines
4.1 KiB
C
/*
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* Copyright (C) 2019-2023 by Sukchan Lee <acetcom@gmail.com>
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*
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* This file is part of Open5GS.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include "init.h"
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#include "sbi-path.h"
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static ogs_thread_t *thread;
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static void af_main(void *data);
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static int initialized = 0;
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int af_initialize(void)
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{
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bool no_scp, no_nrf;
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int rv;
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#define APP_NAME "af"
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rv = ogs_app_parse_local_conf(APP_NAME);
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if (rv != OGS_OK) return rv;
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ogs_sbi_context_init(OpenAPI_nf_type_AF);
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af_context_init();
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no_scp = ogs_global_conf()->parameter.no_scp;
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no_nrf = ogs_global_conf()->parameter.no_nrf;
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ogs_global_conf()->parameter.no_scp = false;
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ogs_global_conf()->parameter.no_nrf = false;
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rv = ogs_sbi_context_parse_config(APP_NAME, "nrf", "scp");
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if (rv != OGS_OK) return rv;
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ogs_global_conf()->parameter.no_scp = no_scp;
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ogs_global_conf()->parameter.no_nrf = no_nrf;
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rv = af_context_parse_config();
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if (rv != OGS_OK) return rv;
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rv = ogs_log_config_domain(
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ogs_app()->logger.domain, ogs_app()->logger.level);
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if (rv != OGS_OK) return rv;
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rv = af_sbi_open();
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if (rv != 0) return OGS_ERROR;
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thread = ogs_thread_create(af_main, NULL);
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if (!thread) return OGS_ERROR;
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initialized = 1;
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return OGS_OK;
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}
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static ogs_timer_t *t_termination_holding = NULL;
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static void event_termination(void)
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{
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ogs_sbi_nf_instance_t *nf_instance = NULL;
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/* Sending NF Instance De-registeration to NRF */
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ogs_list_for_each(&ogs_sbi_self()->nf_instance_list, nf_instance)
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ogs_sbi_nf_fsm_fini(nf_instance);
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/* Starting holding timer */
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t_termination_holding = ogs_timer_add(ogs_app()->timer_mgr, NULL, NULL);
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ogs_assert(t_termination_holding);
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#define TERMINATION_HOLDING_TIME ogs_time_from_msec(300)
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ogs_timer_start(t_termination_holding, TERMINATION_HOLDING_TIME);
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/* Sending termination event to the queue */
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ogs_queue_term(ogs_app()->queue);
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ogs_pollset_notify(ogs_app()->pollset);
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}
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void af_terminate(void)
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{
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if (!initialized) return;
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/* Daemon terminating */
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event_termination();
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ogs_thread_destroy(thread);
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ogs_timer_delete(t_termination_holding);
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af_sbi_close();
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af_context_final();
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ogs_sbi_context_final();
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}
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static void af_main(void *data)
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{
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ogs_fsm_t af_sm;
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int rv;
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ogs_fsm_init(&af_sm, af_state_initial, af_state_final, 0);
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for ( ;; ) {
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ogs_pollset_poll(ogs_app()->pollset,
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ogs_timer_mgr_next(ogs_app()->timer_mgr));
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/*
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* After ogs_pollset_poll(), ogs_timer_mgr_expire() must be called.
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*
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* The reason is why ogs_timer_mgr_next() can get the corrent value
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* when ogs_timer_stop() is called internally in ogs_timer_mgr_expire().
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*
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* You should not use event-queue before ogs_timer_mgr_expire().
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* In this case, ogs_timer_mgr_expire() does not work
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* because 'if rv == OGS_DONE' statement is exiting and
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* not calling ogs_timer_mgr_expire().
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*/
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ogs_timer_mgr_expire(ogs_app()->timer_mgr);
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for ( ;; ) {
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af_event_t *e = NULL;
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rv = ogs_queue_trypop(ogs_app()->queue, (void**)&e);
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ogs_assert(rv != OGS_ERROR);
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if (rv == OGS_DONE)
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goto done;
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if (rv == OGS_RETRY)
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break;
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ogs_assert(e);
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ogs_fsm_dispatch(&af_sm, e);
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ogs_event_free(e);
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}
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}
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done:
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ogs_fsm_fini(&af_sm, 0);
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}
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