--- /dev/null
+/*************************************************************************
+*
+* Copyright 2020 highstreet technologies GmbH and others
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+***************************************************************************/
+
+#define _GNU_SOURCE
+
+#include "ves_heartbeat.h"
+#include "utils/log_utils.h"
+#include "utils/sys_utils.h"
+#include "utils/http_client.h"
+#include "utils/nts_utils.h"
+#include <stdio.h>
+#include <time.h>
+#include <inttypes.h>
+#include <assert.h>
+#include <unistd.h>
+#include <pthread.h>
+
+#include "core/session.h"
+#include "core/framework.h"
+
+#define HEARTBEAT_SCHEMA_XPATH "/nts-network-function:simulation/network-function/ves/heartbeat-period"
+
+static volatile int ves_heartbeat_period;
+static int ves_sequence_number;
+
+static pthread_t ves_heartbeat_thread;
+static pthread_mutex_t ves_heartbeat_lock;
+
+
+//mutex-guarded access
+static int ves_heartbeat_period_get(void);
+static void ves_heartbeat_period_set(int new_period);
+
+static int ves_heartbeat_send_ves_message(void);
+static void *ves_heartbeat_thread_routine(void *arg);
+static cJSON* ves_create_heartbeat_fields(int heartbeat_period);
+static int heartbeat_change_cb(sr_session_ctx_t *session, const char *module_name, const char *xpath, sr_event_t event, uint32_t request_id, void *private_data);
+
+int ves_heartbeat_feature_start(sr_session_ctx_t *current_session) {
+ assert_session();
+
+ sr_val_t *value = 0;
+ if(pthread_mutex_init(&ves_heartbeat_lock, NULL) != 0) {
+ log_error("mutex init has failed");
+ return NTS_ERR_FAILED;
+ }
+
+ ves_heartbeat_period = 0;
+ ves_sequence_number = 0;
+
+ int rc = sr_get_item(current_session, HEARTBEAT_SCHEMA_XPATH, 0, &value);
+ if(rc == SR_ERR_OK) {
+ ves_heartbeat_period_set(value->data.uint16_val);
+ sr_free_val(value);
+ }
+ else if(rc != SR_ERR_NOT_FOUND) {
+ log_error("sr_get_item failed");
+ }
+
+ rc = sr_module_change_subscribe(current_session, "nts-network-function", HEARTBEAT_SCHEMA_XPATH, heartbeat_change_cb, NULL, 0, SR_SUBSCR_CTX_REUSE, &session_subscription);
+ if(rc != SR_ERR_OK) {
+ log_error("could not subscribe to heartbeat");
+ return NTS_ERR_FAILED;
+ }
+
+ if(pthread_create(&ves_heartbeat_thread, 0, ves_heartbeat_thread_routine, 0)) {
+ log_error("could not create thread for heartbeat");
+ return NTS_ERR_FAILED;
+ }
+
+ return NTS_ERR_OK;
+}
+
+static int ves_heartbeat_period_get(void) {
+ pthread_mutex_lock(&ves_heartbeat_lock);
+ int ret = ves_heartbeat_period;
+ pthread_mutex_unlock(&ves_heartbeat_lock);
+ return ret;
+}
+
+static void ves_heartbeat_period_set(int new_period) {
+ pthread_mutex_lock(&ves_heartbeat_lock);
+ ves_heartbeat_period = new_period;
+ pthread_mutex_unlock(&ves_heartbeat_lock);
+}
+
+static int ves_heartbeat_send_ves_message(void) {
+ char *hostname_string = framework_environment.hostname;
+ cJSON *post_data_json = cJSON_CreateObject();
+ if(post_data_json == 0) {
+ log_error("cJSON_CreateObject failed");
+ return NTS_ERR_FAILED;
+ }
+
+ cJSON *event = cJSON_CreateObject();
+ if(event == 0) {
+ log_error("cJSON_CreateObject failed");
+ cJSON_Delete(post_data_json);
+ return NTS_ERR_FAILED;
+ }
+
+ if(cJSON_AddItemToObject(post_data_json, "event", event) == 0) {
+ log_error("cJOSN_AddItemToObject failed");
+ cJSON_Delete(post_data_json);
+ return NTS_ERR_FAILED;
+ }
+
+ cJSON *common_event_header = ves_create_common_event_header("heartbeat", "Controller", hostname_string, "Low", ves_sequence_number++);
+ if(common_event_header == 0) {
+ log_error("ves_create_common_event_header failed");
+ cJSON_Delete(post_data_json);
+ return NTS_ERR_FAILED;
+ }
+
+ if(cJSON_AddItemToObject(event, "commonEventHeader", common_event_header) == 0) {
+ log_error("cJOSN_AddItemToObject failed");
+ cJSON_Delete(post_data_json);
+ return NTS_ERR_FAILED;
+ }
+
+ cJSON *heartbeat_fields = ves_create_heartbeat_fields(ves_heartbeat_period_get());
+ if(heartbeat_fields == 0) {
+ log_error("ves_create_heartbeat_fields failed");
+ cJSON_Delete(post_data_json);
+ return NTS_ERR_FAILED;
+ }
+
+ if(cJSON_AddItemToObject(event, "heartbeatFields", heartbeat_fields) == 0) {
+ log_error("cJOSN_AddItemToObject failed");
+ cJSON_Delete(post_data_json);
+ return NTS_ERR_FAILED;
+ }
+
+ char *post_data = cJSON_PrintUnformatted(post_data_json);
+ cJSON_Delete(post_data_json);
+ if(post_data == 0) {
+ log_error("cJSON_PrintUnformatted failed");
+ return NTS_ERR_FAILED;
+ }
+
+ ves_details_t *ves_details = ves_endpoint_details_get(0);
+ if(!ves_details) {
+ log_error("ves_endpoint_details_get failed");
+ free(post_data);
+ return NTS_ERR_FAILED;
+ }
+
+ int rc = http_request(ves_details->url, ves_details->username, ves_details->password, "POST", post_data, 0, 0);
+ ves_details_free(ves_details);
+ free(post_data);
+
+ if(rc != NTS_ERR_OK) {
+ log_error("http_request failed");
+ return NTS_ERR_FAILED;
+ }
+
+ return NTS_ERR_OK;
+}
+
+static void *ves_heartbeat_thread_routine(void *arg) {
+ int current_heartbeat_period = 0;
+ unsigned int timer_counter = 0;
+
+ while(!framework_sigint) {
+ current_heartbeat_period = ves_heartbeat_period_get();
+ timer_counter++;
+
+ if((timer_counter >= current_heartbeat_period) && (current_heartbeat_period > 0)) {
+ timer_counter = 0;
+
+ int rc = ves_heartbeat_send_ves_message();
+ if(rc != NTS_ERR_FAILED) {
+ log_error("could not send VES heartbeat");
+ }
+ }
+
+ sleep(1);
+ }
+
+ return 0;
+}
+
+static cJSON* ves_create_heartbeat_fields(int heartbeat_period) {
+ cJSON *heartbeat_fields = cJSON_CreateObject();
+ if(heartbeat_fields == 0) {
+ log_error("could not create JSON object");
+ return 0;
+ }
+
+ if(cJSON_AddStringToObject(heartbeat_fields, "heartbeatFieldsVersion", "3.0") == 0) {
+ log_error("cJSON_Add*ToObject failed");
+ cJSON_Delete(heartbeat_fields);
+ return 0;
+ }
+
+ if(cJSON_AddNumberToObject(heartbeat_fields, "heartbeatInterval", (double)(heartbeat_period)) == 0) {
+ log_error("cJSON_Add*ToObject failed");
+ cJSON_Delete(heartbeat_fields);
+ return 0;
+ }
+
+ cJSON *additional_fields = cJSON_CreateObject();
+ if(additional_fields == 0) {
+ log_error("could not create JSON object");
+ log_error("cJSON_Add*ToObject failed");
+ cJSON_Delete(heartbeat_fields);
+ return 0;
+ }
+
+ if(cJSON_AddItemToObject(heartbeat_fields, "additionalFields", additional_fields) == 0) {
+ log_error("cJSON_Add*ToObject failed");
+ cJSON_Delete(heartbeat_fields);
+ return 0;
+ }
+
+ char *current_date_and_time = get_current_date_and_time();
+ if(current_date_and_time == 0) {
+ log_error("get_current_date_and_time failed");
+ cJSON_Delete(heartbeat_fields);
+ return 0;
+ }
+
+ if(cJSON_AddStringToObject(additional_fields, "eventTime", current_date_and_time) == 0) {
+ log_error("cJSON_Add*ToObject failed");
+ cJSON_Delete(heartbeat_fields);
+ free(current_date_and_time);
+ return 0;
+ }
+ free(current_date_and_time);
+
+ return heartbeat_fields;
+}
+
+static int heartbeat_change_cb(sr_session_ctx_t *session, const char *module_name, const char *xpath, sr_event_t event, uint32_t request_id, void *private_data) {
+ sr_change_iter_t *it = 0;
+ int rc = SR_ERR_OK;
+ sr_change_oper_t oper;
+ sr_val_t *old_value = 0;
+ sr_val_t *new_value = 0;
+
+ if(event == SR_EV_DONE) {
+ rc = sr_get_changes_iter(session, HEARTBEAT_SCHEMA_XPATH, &it);
+ if(rc != SR_ERR_OK) {
+ log_error("sr_get_changes_iter failed");
+ return SR_ERR_VALIDATION_FAILED;
+ }
+
+ while((rc = sr_get_change_next(session, it, &oper, &old_value, &new_value)) == SR_ERR_OK) {
+ ves_heartbeat_period_set(new_value->data.uint16_val);
+ sr_free_val(old_value);
+ sr_free_val(new_value);
+ }
+
+ sr_free_change_iter(it);
+ }
+
+ return SR_ERR_OK;
+}
Code Review / sim / o1-interface.git / blobdiff