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57 lines
1.5 KiB
C
57 lines
1.5 KiB
C
/*
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* SPDX-FileCopyrightText: 2015-2024 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#pragma once
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#include <stdint.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* @brief Function which returns timestamp to be used in log output
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*
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* This function is used in expansion of ESP_LOGx macros.
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* In the 2nd stage bootloader, and at early application startup stage
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* this function uses CPU cycle counter as time source. Later when
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* FreeRTOS scheduler start running, it switches to FreeRTOS tick count.
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*
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* For now, we ignore millisecond counter overflow.
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*
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* @return timestamp, in milliseconds
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*/
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uint32_t esp_log_timestamp(void);
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/**
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* @brief Function which returns system timestamp to be used in log output
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*
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* This function is used in expansion of ESP_LOGx macros to print
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* the system time as "HH:MM:SS.sss". The system time is initialized to
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* 0 on startup, this can be set to the correct time with an SNTP sync,
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* or manually with standard POSIX time functions.
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*
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* Currently, this will not get used in logging from binary blobs
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* (i.e. Wi-Fi & Bluetooth libraries), these will still print the RTOS tick time.
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*
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* @return timestamp, in "HH:MM:SS.sss"
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*/
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char* esp_log_system_timestamp(void);
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/**
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* @brief Function which returns timestamp to be used in log output
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*
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* This function uses HW cycle counter and does not depend on OS,
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* so it can be safely used after application crash.
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*
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* @return timestamp, in milliseconds
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*/
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uint32_t esp_log_early_timestamp(void);
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#ifdef __cplusplus
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}
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#endif
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