PersonalVotingMachine/extended-setup/main/impl/modules/SNTPModule.cpp

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2020-12-22 14:30:09 +02:00
/**
* @file SNTPModule.cpp
* @brief SNTPModule implementation file
* */
#include "lwip/apps/sntp.h"
#include "sntp/sntp.h"
#include "module.h"
void time_sync_notification_cb(struct timeval *tv){
ESP_LOGI("Global","Notification of a time synchronization event");
}
/** Sample code to sync time with NTP server from ESP-IDF
* https://github.com/espressif/esp-idf/tree/master/examples/protocols/sntp
* */
void SNTPModule::initialize_sntp(void){
sntp_setoperatingmode(SNTP_OPMODE_POLL);
sntp_setservername(0, (char*) "pool.ntp.org");
sntp_set_time_sync_notification_cb(time_sync_notification_cb);
sntp_init();
}
esp_err_t SNTPModule::init(){
// Sync time
time_t now;
struct tm timeinfo;
time(&now);
localtime_r(&now, &timeinfo);
// Is time set? If not, tm_year will be (1970 - 1900).
if (timeinfo.tm_year < (2019 - 1900)) {
ESP_LOGI(TAG, "Time is not set yet. Connecting to WiFi and getting time over NTP.");
ESP_LOGI(TAG, "Initializing SNTP");
initialize_sntp();
int retry = 0;
const int retry_count = 10;
while (sntp_get_sync_status() == SNTP_SYNC_STATUS_RESET && ++retry < retry_count) {
ESP_LOGI(TAG, "Waiting for system time to be set... (%d/%d)", retry, retry_count);
vTaskDelay(2000 / portTICK_PERIOD_MS);
}
// update 'now' variable with current time
time(&now);
localtime_r(&now, &timeinfo);
char curr[20];
strftime(curr, 20,"%Y-%m-%dT%XZ", localtime(&now));
ESP_LOGI(TAG, "Time is set: %s", curr);
}
return ESP_OK;
}
esp_err_t SNTPModule::deinit(){
sntp_stop();
ESP_LOGI(TAG, "deinited");
return ESP_OK;
}