doc: updated readme
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# ESP32 ESP-IDF component for Syslog server UDP client
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# ESP32 ESP-IDF component for Syslog UDP client
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## Wiki
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[EN](WIKI_EN.md) | [RU](WIKI_RU.md)
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## Tested on
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1. [ESP32 ESP-IDF v6.0.0](https://docs.espressif.com/projects/esp-idf/en/v6.0/esp32/index.html)
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1. [ESP-IDF v6.0.0](https://docs.espressif.com/projects/esp-idf/en/v6.0/esp32/index.html)
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## SAST Tools
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[PVS-Studio](https://pvs-studio.com/pvs-studio/?utm_source=website&utm_medium=github&utm_campaign=open_source) - static analyzer for C, C++, C#, and Java code.
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[PVS-Studio](https://pvs-studio.com/pvs-studio/?utm_source=website&utm_medium=github&utm_campaign=open_source) — static analyzer for C, C++, C#, and Java code.
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## Note
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## Features
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Messages are built using the format defined in [RFC 5424](https://datatracker.ietf.org/doc/html/rfc5424).
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1. Support for all standard syslog facility codes (0-23) per RFC 5424
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2. Support for all standard syslog severity levels (0-7) per RFC 5424
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3. RFC 5424 format message generation with priority calculation
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4. Thread-safe initialization and deinitialization
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5. MALLOC_CAP_8BIT memory allocation for DMA compatibility
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## Using
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In an existing project, run the following command to install the component:
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In an existing project, run the following command to install the components:
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```text
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cd ../your_project/components
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@@ -27,91 +35,10 @@ In the application, add the component:
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#include "zh_syslog.h"
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```
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## Example
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## Examples
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Sending messages:
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See Wiki [EN](WIKI_EN.md#usage-examples) | [RU](WIKI_RU.md#примеры-использования)
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```c
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#include "nvs_flash.h"
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#include "esp_netif.h"
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#include "esp_wifi.h"
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#include "esp_timer.h"
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#include "esp_event.h"
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#include "freertos/FreeRTOS.h"
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#include "freertos/event_groups.h"
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#include "zh_syslog.h"
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## Note
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#define WIFI_SSID "ssid"
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#define WIFI_PASS "password"
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#define WIFI_MAXIMUM_RETRY 5
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#define WIFI_RECONNECT_TIME 5
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#define WIFI_CONNECT_SUCCESS BIT0
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#define SYSLOG_IP "192.168.1.2"
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esp_timer_handle_t wifi_reconnect_timer = {0};
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uint8_t wifi_reconnect_retry_num = 0;
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EventGroupHandle_t event_group_handle = {0};
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void wifi_event_handler(void *arg, esp_event_base_t event_base, int32_t event_id, void *event_data);
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void app_main(void)
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{
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esp_log_level_set("zh_syslog", ESP_LOG_ERROR);
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nvs_flash_init();
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esp_netif_init();
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esp_event_loop_create_default();
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esp_netif_create_default_wifi_sta();
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wifi_init_config_t wifi_init_sta_config = WIFI_INIT_CONFIG_DEFAULT();
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esp_wifi_init(&wifi_init_sta_config);
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wifi_config_t wifi_config = {
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.sta.ssid = WIFI_SSID,
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.sta.password = WIFI_PASS};
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esp_wifi_set_mode(WIFI_MODE_STA);
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esp_wifi_set_config(WIFI_IF_STA, &wifi_config);
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esp_event_handler_instance_register(WIFI_EVENT, ESP_EVENT_ANY_ID, &wifi_event_handler, NULL, NULL);
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esp_event_handler_instance_register(IP_EVENT, IP_EVENT_STA_GOT_IP, &wifi_event_handler, NULL, NULL);
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esp_wifi_start();
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event_group_handle = xEventGroupCreate();
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xEventGroupWaitBits(event_group_handle, WIFI_CONNECT_SUCCESS, pdTRUE, pdTRUE, portMAX_DELAY);
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zh_syslog_init_config_t config = ZH_SYSLOG_INIT_CONFIG_DEFAULT();
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strcpy(config.syslog_ip, SYSLOG_IP);
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zh_syslog_init(&config);
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for (;;)
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{
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zh_syslog_send(ZH_USER, ZH_INFO, "my_device", "my_application", "Message");
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vTaskDelay(5000 / portTICK_PERIOD_MS);
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}
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}
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void wifi_event_handler(void *arg, esp_event_base_t event_base, int32_t event_id, void *event_data)
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{
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switch (event_id)
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{
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case WIFI_EVENT_STA_START:
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esp_wifi_connect();
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break;
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case WIFI_EVENT_STA_DISCONNECTED:
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if (wifi_reconnect_retry_num < WIFI_MAXIMUM_RETRY)
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{
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esp_wifi_connect();
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++wifi_reconnect_retry_num;
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}
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else
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{
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wifi_reconnect_retry_num = 0;
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esp_timer_create_args_t wifi_reconnect_timer_args = {
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.callback = (void *)esp_wifi_connect};
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esp_timer_create(&wifi_reconnect_timer_args, &wifi_reconnect_timer);
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esp_timer_start_once(wifi_reconnect_timer, WIFI_RECONNECT_TIME * 1000);
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}
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break;
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case IP_EVENT_STA_GOT_IP:
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wifi_reconnect_retry_num = 0;
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xEventGroupSetBits(event_group_handle, WIFI_CONNECT_SUCCESS);
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break;
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default:
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break;
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}
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}
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```
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Messages are built using the format defined in [RFC 5424](https://datatracker.ietf.org/doc/html/rfc5424).
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