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/* ... */
#include "sdkconfig.h"
#if CONFIG_ESP_TIME_FUNCS_USE_ESP_TIMER
#include "esp_timer.h"
#include "esp_timer_impl.h"
#include "esp_system.h"
#include "esp_newlib.h"
#include "esp_log.h"
#include "esp_private/startup_internal.h"6 includes
#if CONFIG_IDF_TARGET_ESP32
#include "esp32/rtc.h"
#elif CONFIG_IDF_TARGET_ESP32S2
#include "esp32s2/rtc.h"
#elif CONFIG_IDF_TARGET_ESP32S3
#include "esp32s3/rtc.h"
#elif CONFIG_IDF_TARGET_ESP32C3
#include "esp32c3/rtc.h"
#elif CONFIG_IDF_TARGET_ESP32C2
#include "esp32c2/rtc.h"
#elif CONFIG_IDF_TARGET_ESP32C6
#include "esp32c6/rtc.h"
#elif CONFIG_IDF_TARGET_ESP32C61
#include "esp32c61/rtc.h"
#elif CONFIG_IDF_TARGET_ESP32C5
#include "esp32c5/rtc.h"
#elif CONFIG_IDF_TARGET_ESP32H2
#include "esp32h2/rtc.h"
#elif CONFIG_IDF_TARGET_ESP32P4
#include "esp32p4/rtc.h"
#endif
__attribute__((unused)) static const char* TAG = "system_time";
static int64_t s_correction_us = 0;
void esp_timer_impl_init_system_time(void)
{
s_correction_us = esp_rtc_get_time_us() - g_startup_time - esp_timer_impl_get_time();
#if defined(CONFIG_ESP_TIME_FUNCS_USE_ESP_TIMER) && defined(CONFIG_ESP_TIME_FUNCS_USE_RTC_TIMER)
esp_err_t err = esp_register_shutdown_handler(esp_sync_timekeeping_timers);
if (err != ESP_OK) {
ESP_LOGW(TAG, "Register shutdown handler failed, err = 0x%x", err);
}{...}
/* ... */#endif
}{ ... }
int64_t IRAM_ATTR esp_system_get_time(void)
{
return esp_timer_get_time() + s_correction_us;
}{ ... }
uint32_t IRAM_ATTR esp_system_get_time_resolution(void)
{
return 1000;
}{ ... }
#endif/* ... */