ESP-IDF
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Outline
#include <assert.h>
#include <time.h>
#include <sys/time.h>
#include "esp_log_timestamp.h"
#include "esp_private/log_util.h"
#include "esp_private/log_timestamp.h"
#include "sdkconfig.h"
#include <sys/lock.h>
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
esp_log_system_timestamp()
esp_log_timestamp64(bool)
esp_log_timestamp_str(bool, uint64_t, char *)
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SourceVuESP-IDF Framework and ExamplesESP-IDFcomponents/log/src/log_timestamp_common.c
 
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/* * SPDX-FileCopyrightText: 2024 Espressif Systems (Shanghai) CO LTD * * SPDX-License-Identifier: Apache-2.0 *//* ... */ #include <assert.h> #include <time.h> #include <sys/time.h> #include "esp_log_timestamp.h" #include "esp_private/log_util.h" #include "esp_private/log_timestamp.h" #include "sdkconfig.h"7 includes #ifndef NON_OS_BUILD #include <sys/lock.h> #include "freertos/FreeRTOS.h" #include "freertos/task.h" char *esp_log_system_timestamp(void) { static char buffer[18] = {0}; static _lock_t bufferLock = 0; #if CONFIG_IDF_TARGET_LINUX const bool early_log = false; #else const bool early_log = xTaskGetSchedulerState() == taskSCHEDULER_NOT_STARTED; #endif if (early_log) { uint32_t timestamp = esp_log_early_timestamp(); for (uint8_t i = 0; i < sizeof(buffer); i++) { if ((timestamp > 0) || (i == 0)) { for (uint8_t j = sizeof(buffer) - 1; j > 0; j--) { buffer[j] = buffer[j - 1]; }{...} buffer[0] = (char)(timestamp % 10) + '0'; timestamp /= 10; }{...} else { buffer[i] = 0; break; }{...} }{...} }{...} else { struct timeval tv; struct tm timeinfo; gettimeofday(&tv, NULL); localtime_r(&tv.tv_sec, &timeinfo); _lock_acquire(&bufferLock); unsigned msec = tv.tv_usec / 1000; snprintf(buffer, sizeof(buffer), "%02d:%02d:%02d.%03d", timeinfo.tm_hour, timeinfo.tm_min, timeinfo.tm_sec, msec); _lock_release(&bufferLock); }{...} return buffer; }{ ... } #endif/* ... */ // !NON_OS_BUILD uint64_t esp_log_timestamp64(bool critical) { uint64_t timestamp_ms; #if CONFIG_BOOTLOADER_LOG_TIMESTAMP_SOURCE_NONE || CONFIG_LOG_TIMESTAMP_SOURCE_NONE (void) critical; timestamp_ms = 0;/* ... */ #elif CONFIG_LOG_TIMESTAMP_SOURCE_SYSTEM || CONFIG_LOG_TIMESTAMP_SOURCE_SYSTEM_FULL if (critical) { timestamp_ms = esp_log_early_timestamp(); }{...} else { #if CONFIG_IDF_TARGET_LINUX struct timespec tv; int result = clock_gettime(CLOCK_MONOTONIC, &tv); assert(result == 0); timestamp_ms = tv.tv_sec * 1000 + tv.tv_nsec / 1000000;/* ... */ #else struct timeval tv; gettimeofday(&tv, NULL); timestamp_ms = tv.tv_sec * 1000 + tv.tv_usec / 1000;/* ... */ #endif }{...} #else/* ... */ (void) critical; timestamp_ms = esp_log_timestamp();/* ... */ #endif return timestamp_ms; }{ ... } char* esp_log_timestamp_str(bool critical, uint64_t timestamp_ms, char* buffer) { char* out_buffer = buffer; #if CONFIG_BOOTLOADER_LOG_TIMESTAMP_SOURCE_NONE || CONFIG_LOG_TIMESTAMP_SOURCE_NONE (void)critical; *buffer = '\0';/* ... */ #elif CONFIG_LOG_TIMESTAMP_SOURCE_SYSTEM || CONFIG_LOG_TIMESTAMP_SOURCE_SYSTEM_FULL if (critical) { esp_log_util_cvt_dec(timestamp_ms, 0, buffer); }{...} else { struct tm timeinfo; time_t sec = timestamp_ms / 1000; uint64_t msec = timestamp_ms % 1000; localtime_r(&sec, &timeinfo); #if CONFIG_LOG_TIMESTAMP_SOURCE_SYSTEM_FULL // it takes 22 bytes to output it in the format: "YY-MM-DD HH:MM:SS.sss" buffer += esp_log_util_cvt_dec(timeinfo.tm_year, 2, buffer); *buffer++ = '-'; buffer += esp_log_util_cvt_dec(timeinfo.tm_mon + 1, 2, buffer); *buffer++ = '-'; buffer += esp_log_util_cvt_dec(timeinfo.tm_mday, 2, buffer); *buffer++ = ' ';/* ... */ #endif // CONFIG_LOG_TIMESTAMP_SOURCE_SYSTEM_FULL buffer += esp_log_util_cvt_dec(timeinfo.tm_hour, 2, buffer); *buffer++ = ':'; buffer += esp_log_util_cvt_dec(timeinfo.tm_min, 2, buffer); *buffer++ = ':'; buffer += esp_log_util_cvt_dec(timeinfo.tm_sec, 2, buffer); *buffer++ = '.'; esp_log_util_cvt_dec(msec, 3, buffer); // (ms) }{...} #else/* ... */ (void)critical; esp_log_util_cvt_dec(timestamp_ms, 0, buffer);/* ... */ #endif return out_buffer; }{ ... }
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