297 lines
12 KiB
C
297 lines
12 KiB
C
// Copyright 2015-2016 Espressif Systems (Shanghai) PTE LTD
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#ifndef __ESP_LOG_H__
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#define __ESP_LOG_H__
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#include <stdint.h>
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#include <stdarg.h>
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#include "sdkconfig.h"
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#include <rom/ets_sys.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 Log level
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*
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*/
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typedef enum {
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ESP_LOG_NONE, /*!< No log output */
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ESP_LOG_ERROR, /*!< Critical errors, software module can not recover on its own */
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ESP_LOG_WARN, /*!< Error conditions from which recovery measures have been taken */
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ESP_LOG_INFO, /*!< Information messages which describe normal flow of events */
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ESP_LOG_DEBUG, /*!< Extra information which is not necessary for normal use (values, pointers, sizes, etc). */
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ESP_LOG_VERBOSE /*!< Bigger chunks of debugging information, or frequent messages which can potentially flood the output. */
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} esp_log_level_t;
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typedef int (*vprintf_like_t)(const char *, va_list);
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/**
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* @brief Set log level for given tag
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*
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* If logging for given component has already been enabled, changes previous setting.
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*
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* @param tag Tag of the log entries to enable. Must be a non-NULL zero terminated string.
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* Value "*" resets log level for all tags to the given value.
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*
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* @param level Selects log level to enable. Only logs at this and lower levels will be shown.
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*/
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void esp_log_level_set(const char* tag, esp_log_level_t level);
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/**
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* @brief Set function used to output log entries
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*
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* By default, log output goes to UART0. This function can be used to redirect log
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* output to some other destination, such as file or network. Returns the original
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* log handler, which may be necessary to return output to the previous destination.
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*
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* @param func new Function used for output. Must have same signature as vprintf.
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*
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* @return func old Function used for output.
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*/
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vprintf_like_t esp_log_set_vprintf(vprintf_like_t func);
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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 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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/**
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* @brief Write message into the log
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*
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* This function is not intended to be used directly. Instead, use one of
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* ESP_LOGE, ESP_LOGW, ESP_LOGI, ESP_LOGD, ESP_LOGV macros.
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*
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* This function or these macros should not be used from an interrupt.
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*/
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void esp_log_write(esp_log_level_t level, const char* tag, const char* format, ...) __attribute__ ((format (printf, 3, 4)));
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#include "esp_log_internal.h"
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/**
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* @brief Log a buffer of hex bytes at specified level, seprated into 16 bytes each line.
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*
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* @param tag description tag
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*
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* @param buffer Pointer to the buffer array
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*
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* @param buff_len length of buffer in bytes
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*
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* @param level level of the log
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*
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*/
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#define ESP_LOG_BUFFER_HEX_LEVEL( tag, buffer, buff_len, level ) do {\
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if ( LOG_LOCAL_LEVEL >= level ) esp_log_buffer_hex_internal( tag, buffer, buff_len, level ); } while(0)
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/**
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* @brief Log a buffer of characters at specified level, seprated into 16 bytes each line. Buffer should contain only printable characters.
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*
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* @param tag description tag
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*
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* @param buffer Pointer to the buffer array
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*
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* @param buff_len length of buffer in bytes
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*
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* @param level level of the log
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*
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*/
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#define ESP_LOG_BUFFER_CHAR_LEVEL( tag, buffer, buff_len, level ) do {\
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if ( LOG_LOCAL_LEVEL >= level ) esp_log_buffer_char_internal( tag, buffer, buff_len, level ); } while(0)
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/**
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* @brief Dump a buffer to the log at specified level.
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*
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* The dump log shows just like the one below:
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*
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* W (195) log_example: 0x3ffb4280 45 53 50 33 32 20 69 73 20 67 72 65 61 74 2c 20 |ESP32 is great, |
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* W (195) log_example: 0x3ffb4290 77 6f 72 6b 69 6e 67 20 61 6c 6f 6e 67 20 77 69 |working along wi|
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* W (205) log_example: 0x3ffb42a0 74 68 20 74 68 65 20 49 44 46 2e 00 |th the IDF..|
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*
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* It is highly recommend to use terminals with over 102 text width.
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*
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* @param tag description tag
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*
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* @param buffer Pointer to the buffer array
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*
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* @param buff_len length of buffer in bytes
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*
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* @param level level of the log
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*/
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#define ESP_LOG_BUFFER_HEXDUMP( tag, buffer, buff_len, level ) do {\
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if ( LOG_LOCAL_LEVEL >= level ) esp_log_buffer_hexdump_internal( tag, buffer, buff_len, level); } while(0)
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#if (LOG_LOCAL_LEVEL >= ESP_LOG_INFO)
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/**
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* @brief Log a buffer of hex bytes at Info level
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*
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* @param tag description tag
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*
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* @param buffer Pointer to the buffer array
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*
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* @param buff_len length of buffer in bytes
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*
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* @see ``esp_log_buffer_hex_level``
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*
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*/
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#define ESP_LOG_BUFFER_HEX(tag, buffer, buff_len) ESP_LOG_BUFFER_HEX_LEVEL( tag, buffer, buff_len, ESP_LOG_INFO )
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/**
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* @brief Log a buffer of characters at Info level. Buffer should contain only printable characters.
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*
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* @param tag description tag
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*
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* @param buffer Pointer to the buffer array
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*
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* @param buff_len length of buffer in bytes
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*
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* @see ``esp_log_buffer_char_level``
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*
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*/
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#define ESP_LOG_BUFFER_CHAR(tag, buffer, buff_len) ESP_LOG_BUFFER_CHAR_LEVEL( tag, buffer, buff_len, ESP_LOG_INFO )
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#else
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#define ESP_LOG_BUFFER_HEX(tag, buffer, buff_len) {}
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#define ESP_LOG_BUFFER_CHAR(tag, buffer, buff_len) {}
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#endif
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//to be back compatible
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#define esp_log_buffer_hex ESP_LOG_BUFFER_HEX
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#define esp_log_buffer_char ESP_LOG_BUFFER_CHAR
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#if CONFIG_LOG_COLORS
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#define LOG_COLOR_BLACK "30"
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#define LOG_COLOR_RED "31"
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#define LOG_COLOR_GREEN "32"
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#define LOG_COLOR_BROWN "33"
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#define LOG_COLOR_BLUE "34"
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#define LOG_COLOR_PURPLE "35"
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#define LOG_COLOR_CYAN "36"
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#define LOG_COLOR(COLOR) "\033[0;" COLOR "m"
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#define LOG_BOLD(COLOR) "\033[1;" COLOR "m"
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#define LOG_RESET_COLOR "\033[0m"
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#define LOG_COLOR_E LOG_COLOR(LOG_COLOR_RED)
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#define LOG_COLOR_W LOG_COLOR(LOG_COLOR_BROWN)
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#define LOG_COLOR_I LOG_COLOR(LOG_COLOR_GREEN)
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#define LOG_COLOR_D
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#define LOG_COLOR_V
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#else //CONFIG_LOG_COLORS
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#define LOG_COLOR_E
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#define LOG_COLOR_W
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#define LOG_COLOR_I
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#define LOG_COLOR_D
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#define LOG_COLOR_V
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#define LOG_RESET_COLOR
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#endif //CONFIG_LOG_COLORS
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#define LOG_FORMAT(letter, format) LOG_COLOR_ ## letter #letter " (%d) %s: " format LOG_RESET_COLOR "\n"
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#ifndef LOG_LOCAL_LEVEL
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#ifndef BOOTLOADER_BUILD
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#define LOG_LOCAL_LEVEL ((esp_log_level_t) CONFIG_LOG_DEFAULT_LEVEL)
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#else
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#define LOG_LOCAL_LEVEL ((esp_log_level_t) CONFIG_LOG_BOOTLOADER_LEVEL)
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#endif
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#endif
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/// macro to output logs in startup code, before heap allocator and syscalls have been initialized. log at ``ESP_LOG_ERROR`` level. @see ``printf``,``ESP_LOGE``
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#define ESP_EARLY_LOGE( tag, format, ... ) if (LOG_LOCAL_LEVEL >= ESP_LOG_ERROR) { ets_printf(LOG_FORMAT(E, format), esp_log_timestamp(), tag, ##__VA_ARGS__); }
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/// macro to output logs in startup code at ``ESP_LOG_WARN`` level. @see ``ESP_EARLY_LOGE``,``ESP_LOGE``, ``printf``
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#define ESP_EARLY_LOGW( tag, format, ... ) if (LOG_LOCAL_LEVEL >= ESP_LOG_WARN) { ets_printf(LOG_FORMAT(W, format), esp_log_timestamp(), tag, ##__VA_ARGS__); }
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/// macro to output logs in startup code at ``ESP_LOG_INFO`` level. @see ``ESP_EARLY_LOGE``,``ESP_LOGE``, ``printf``
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#define ESP_EARLY_LOGI( tag, format, ... ) if (LOG_LOCAL_LEVEL >= ESP_LOG_INFO) { ets_printf(LOG_FORMAT(I, format), esp_log_timestamp(), tag, ##__VA_ARGS__); }
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/// macro to output logs in startup code at ``ESP_LOG_DEBUG`` level. @see ``ESP_EARLY_LOGE``,``ESP_LOGE``, ``printf``
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#define ESP_EARLY_LOGD( tag, format, ... ) if (LOG_LOCAL_LEVEL >= ESP_LOG_DEBUG) { ets_printf(LOG_FORMAT(D, format), esp_log_timestamp(), tag, ##__VA_ARGS__); }
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/// macro to output logs in startup code at ``ESP_LOG_VERBOSE`` level. @see ``ESP_EARLY_LOGE``,``ESP_LOGE``, ``printf``
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#define ESP_EARLY_LOGV( tag, format, ... ) if (LOG_LOCAL_LEVEL >= ESP_LOG_VERBOSE) { ets_printf(LOG_FORMAT(V, format), esp_log_timestamp(), tag, ##__VA_ARGS__); }
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#ifndef BOOTLOADER_BUILD
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#define ESP_LOGE( tag, format, ... ) if (LOG_LOCAL_LEVEL >= ESP_LOG_ERROR) { esp_log_write(ESP_LOG_ERROR, tag, LOG_FORMAT(E, format), esp_log_timestamp(), tag, ##__VA_ARGS__); }
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#define ESP_LOGW( tag, format, ... ) if (LOG_LOCAL_LEVEL >= ESP_LOG_WARN) { esp_log_write(ESP_LOG_WARN, tag, LOG_FORMAT(W, format), esp_log_timestamp(), tag, ##__VA_ARGS__); }
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#define ESP_LOGI( tag, format, ... ) if (LOG_LOCAL_LEVEL >= ESP_LOG_INFO) { esp_log_write(ESP_LOG_INFO, tag, LOG_FORMAT(I, format), esp_log_timestamp(), tag, ##__VA_ARGS__); }
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#define ESP_LOGD( tag, format, ... ) if (LOG_LOCAL_LEVEL >= ESP_LOG_DEBUG) { esp_log_write(ESP_LOG_DEBUG, tag, LOG_FORMAT(D, format), esp_log_timestamp(), tag, ##__VA_ARGS__); }
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#define ESP_LOGV( tag, format, ... ) if (LOG_LOCAL_LEVEL >= ESP_LOG_VERBOSE) { esp_log_write(ESP_LOG_VERBOSE, tag, LOG_FORMAT(V, format), esp_log_timestamp(), tag, ##__VA_ARGS__); }
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#else
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/**
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* macro to output logs at ESP_LOG_ERROR level.
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*
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* @param tag tag of the log, which can be used to change the log level by ``esp_log_level_set`` at runtime.
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*
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* @see ``printf``
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*/
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#define ESP_LOGE( tag, format, ... ) ESP_EARLY_LOGE(tag, format, ##__VA_ARGS__)
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/// macro to output logs at ``ESP_LOG_WARN`` level. @see ``ESP_LOGE``
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#define ESP_LOGW( tag, format, ... ) ESP_EARLY_LOGW(tag, format, ##__VA_ARGS__)
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/// macro to output logs at ``ESP_LOG_INFO`` level. @see ``ESP_LOGE``
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#define ESP_LOGI( tag, format, ... ) ESP_EARLY_LOGI(tag, format, ##__VA_ARGS__)
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/// macro to output logs at ``ESP_LOG_DEBUG`` level. @see ``ESP_LOGE``
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#define ESP_LOGD( tag, format, ... ) ESP_EARLY_LOGD(tag, format, ##__VA_ARGS__)
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/// macro to output logs at ``ESP_LOG_VERBOSE`` level. @see ``ESP_LOGE``
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#define ESP_LOGV( tag, format, ... ) ESP_EARLY_LOGV(tag, format, ##__VA_ARGS__)
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#endif // BOOTLOADER_BUILD
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/** runtime macro to output logs at a speicfied level.
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*
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* @param tag tag of the log, which can be used to change the log level by ``esp_log_level_set`` at runtime.
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*
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* @param level level of the output log.
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*
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* @param format format of the output log. see ``printf``
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*
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* @param ... variables to be replaced into the log. see ``printf``
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*
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* @see ``printf``
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*/
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#define ESP_LOG_LEVEL(level, tag, format, ...) do {\
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if (level==ESP_LOG_ERROR ) { esp_log_write(ESP_LOG_ERROR, tag, LOG_FORMAT(E, format), esp_log_timestamp(), tag, ##__VA_ARGS__); }\
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else if (level==ESP_LOG_WARN ) { esp_log_write(ESP_LOG_WARN, tag, LOG_FORMAT(W, format), esp_log_timestamp(), tag, ##__VA_ARGS__); }\
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else if (level==ESP_LOG_DEBUG ) { esp_log_write(ESP_LOG_DEBUG, tag, LOG_FORMAT(D, format), esp_log_timestamp(), tag, ##__VA_ARGS__); }\
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else if (level==ESP_LOG_VERBOSE ) { esp_log_write(ESP_LOG_VERBOSE, tag, LOG_FORMAT(V, format), esp_log_timestamp(), tag, ##__VA_ARGS__); }\
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else { esp_log_write(ESP_LOG_INFO, tag, LOG_FORMAT(I, format), esp_log_timestamp(), tag, ##__VA_ARGS__); }}while(0)
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/** runtime macro to output logs at a speicfied level. Also check the level with ``LOG_LOCAL_LEVEL``.
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*
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* @see ``printf``, ``ESP_LOG_LEVEL``
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*/
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#define ESP_LOG_LEVEL_LOCAL(level, tag, format, ...) do {\
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if ( LOG_LOCAL_LEVEL >= level ) ESP_LOG_LEVEL(level, tag, format, ##__VA_ARGS__); } while(0);
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#ifdef __cplusplus
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}
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#endif
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#endif /* __ESP_LOG_H__ */
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