mirror of
https://github.com/espressif/ESP8266_RTOS_SDK.git
synced 2025-05-23 01:58:24 +08:00
318 lines
7.4 KiB
C
318 lines
7.4 KiB
C
// Copyright 2018-2019 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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//
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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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#include <stdarg.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <time.h>
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#include <stdbool.h>
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#include <string.h>
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#include <sys/queue.h>
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#include <sys/lock.h>
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#include "esp_libc.h"
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#include "esp_attr.h"
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#include "xtensa/hal.h"
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#include "esp_log.h"
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#include "esp_system.h"
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#ifndef BOOTLOADER_BUILD
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#include "FreeRTOS.h"
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#endif
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#ifdef CONFIG_LOG_COLORS
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#define LOG_COLOR_HEAD "\033[0;%dm"
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#define LOG_BOLD_HEAD "\033[1;%dm"
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#define LOG_COLOR_END "\033[0m"
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static const uint32_t s_log_color[ESP_LOG_MAX] = {
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0, // ESP_LOG_NONE
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31, // ESP_LOG_ERROR
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33, // ESP_LOG_WARN
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32, // ESP_LOG_INFO
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0, // ESP_LOG_DEBUG
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0, // ESP_LOG_VERBOSE
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};
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#endif
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static const char s_log_prefix[ESP_LOG_MAX] = {
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'N', // ESP_LOG_NONE
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'E', // ESP_LOG_ERROR
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'W', // ESP_LOG_WARN
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'I', // ESP_LOG_INFO
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'D', // ESP_LOG_DEBUG
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'V', // ESP_LOG_VERBOSE
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};
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uint32_t IRAM_ATTR esp_log_early_timestamp()
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{
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#ifndef BOOTLOADER_BUILD
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extern uint64_t g_esp_os_us;
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extern uint32_t g_esp_boot_ccount;
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const uint32_t ticks_per_ms = g_esp_ticks_per_us * 1000;
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const uint32_t ms = g_esp_os_us / 1000 + g_esp_boot_ccount / ((CRYSTAL_USED * 2) * 1000);
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#else
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const uint32_t ticks_per_ms = ((CRYSTAL_USED * 2) * 1000);
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const uint32_t ms = 0;
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#endif
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return soc_get_ccount() / ticks_per_ms + ms;
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}
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#ifndef BOOTLOADER_BUILD
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#ifdef CONFIG_LOG_SET_LEVEL
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#define GLOBAL_TAG "*"
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typedef struct uncached_tag_entry_{
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SLIST_ENTRY(uncached_tag_entry_) entries;
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uint8_t level; // esp_log_level_t as uint8_t
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char tag[0]; // beginning of a zero-terminated string
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} uncached_tag_entry_t;
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static esp_log_level_t s_global_tag_level = ESP_LOG_VERBOSE;
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static SLIST_HEAD(log_tags_head , uncached_tag_entry_) s_log_uncached_tags = SLIST_HEAD_INITIALIZER(s_log_uncached_tags);
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static uncached_tag_entry_t *s_uncached_tag_entry_prev;
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#endif /* CONFIG_LOG_SET_LEVEL */
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static _lock_t s_lock;
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static putchar_like_t s_putchar_func = &putchar;
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#ifdef CONFIG_LOG_SET_LEVEL
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/**
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* @brief get entry by inputting tag
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*/
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static bool esp_log_get_tag_entry(const char *tag, uncached_tag_entry_t **entry)
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{
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uncached_tag_entry_t *it = NULL;
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SLIST_FOREACH(it, &s_log_uncached_tags, entries) {
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if (!strcmp(it->tag, tag)) {
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//one tag in the linked list match, update the level
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*entry = it;
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//quit with it != NULL
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return true;
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}
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}
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return false;
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}
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static void clear_log_level_list(void)
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{
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uncached_tag_entry_t *it = NULL;
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SLIST_FOREACH(it, &s_log_uncached_tags, entries) {
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SLIST_REMOVE(&s_log_uncached_tags, it, uncached_tag_entry_, entries);
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free(it);
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}
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}
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/**
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* @brief get level by inputting tag
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*/
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static esp_log_level_t esp_log_get_level(const char *tag)
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{
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esp_log_level_t out_level;
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uncached_tag_entry_t *entry;
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_lock_acquire_recursive(&s_lock);
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if (s_uncached_tag_entry_prev && !strcmp(s_uncached_tag_entry_prev->tag, tag)) {
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out_level = (esp_log_level_t)s_uncached_tag_entry_prev->level;
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goto exit;
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}
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if (esp_log_get_tag_entry(tag, &entry) == true) {
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out_level = (esp_log_level_t)entry->level;
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s_uncached_tag_entry_prev = entry;
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goto exit;
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} else
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out_level = s_global_tag_level;
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exit:
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_lock_release_recursive(&s_lock);
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return out_level;
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}
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/**
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* @brief check if system should output data
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*/
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static inline bool should_output(esp_log_level_t user_level, esp_log_level_t system_level)
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{
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return user_level <= system_level;
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}
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/**
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* @brief set log level for given tag
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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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size_t bytes;
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uncached_tag_entry_t *entry, *new_entry;
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_lock_acquire_recursive(&s_lock);
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if (!strcmp(tag, GLOBAL_TAG)) {
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s_global_tag_level = level;
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clear_log_level_list();
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goto exit;
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}
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if (esp_log_get_tag_entry(tag, &entry) == true) {
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entry->level = level;
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goto exit;
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}
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bytes = strlen(tag) + 1;
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new_entry = malloc(sizeof(uncached_tag_entry_t) + bytes);
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if (!new_entry)
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goto exit;
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new_entry->level = level;
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memcpy(new_entry->tag, tag, bytes);
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SLIST_INSERT_HEAD(&s_log_uncached_tags, new_entry, entries);
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exit:
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_lock_release_recursive(&s_lock);
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}
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#endif /* CONFIG_LOG_SET_LEVEL */
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static int esp_log_write_str(const char *s)
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{
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int ret;
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do {
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ret = s_putchar_func(*s);
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} while (ret != EOF && *++s);
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return ret;
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}
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#endif
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/**
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* @brief Write message into the log at system startup or critical state
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*/
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void IRAM_ATTR esp_early_log_write(esp_log_level_t level, const char *tag, const char *fmt, ...)
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{
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va_list va;
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char prefix = level >= ESP_LOG_MAX ? 'N' : s_log_prefix[level];
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#ifdef CONFIG_LOG_COLORS
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uint32_t color = level >= ESP_LOG_MAX ? 0 : s_log_color[level];
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if (color)
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ets_printf(LOG_COLOR_HEAD, color);
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#endif
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if (ets_printf("%c (%d) %s: ", prefix, esp_log_early_timestamp(), tag) < 0)
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goto out;
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va_start(va, fmt);
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ets_vprintf(fmt, va);
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va_end(va);
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out:
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#ifdef CONFIG_LOG_COLORS
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if (color)
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ets_printf(LOG_COLOR_END);
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#endif
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ets_printf("\n");
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}
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#ifndef BOOTLOADER_BUILD
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/**
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* @brief Write message into the log
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*/
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void esp_log_write(esp_log_level_t level, const char *tag, const char *fmt, ...)
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{
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int ret;
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va_list va;
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char *pbuf;
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char prefix;
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_lock_acquire_recursive(&s_lock);
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#ifdef CONFIG_LOG_SET_LEVEL
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if (!should_output(level, esp_log_get_level(tag)))
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goto exit;
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#endif
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#ifdef CONFIG_LOG_COLORS
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static char buf[16];
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uint32_t color = level >= ESP_LOG_MAX ? 0 : s_log_color[level];
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if (color) {
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sprintf(buf, LOG_COLOR_HEAD, color);
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ret = esp_log_write_str(buf);
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if (ret == EOF)
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goto exit;
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}
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#endif
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prefix = level >= ESP_LOG_MAX ? 'N' : s_log_prefix[level];
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ret = asprintf(&pbuf, "%c (%d) %s: ", prefix, esp_log_early_timestamp(), tag);
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if (ret < 0)
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goto out;
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ret = esp_log_write_str(pbuf);
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free(pbuf);
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if (ret == EOF)
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goto exit;
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va_start(va, fmt);
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ret = vasprintf(&pbuf, fmt, va);
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va_end(va);
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if (ret < 0)
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goto out;
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ret = esp_log_write_str(pbuf);
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free(pbuf);
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if (ret == EOF)
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goto exit;
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out:
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#ifdef CONFIG_LOG_COLORS
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if (color) {
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ret = esp_log_write_str(LOG_COLOR_END);
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if (ret == EOF)
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goto exit;
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}
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#endif
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if (ret > 0)
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s_putchar_func('\n');
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exit:
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_lock_release_recursive(&s_lock);
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}
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/**
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* @brief Set function used to output log entries
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*/
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putchar_like_t esp_log_set_putchar(putchar_like_t func)
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{
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putchar_like_t tmp;
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_lock_acquire_recursive(&s_lock);
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tmp = s_putchar_func;
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s_putchar_func = func;
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_lock_release_recursive(&s_lock);
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return tmp;
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}
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#endif
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