mirror of
https://github.com/espressif/ESP8266_RTOS_SDK.git
synced 2025-06-17 03:38:49 +08:00
chore(mqtt): arrange MQTT files
1. remove all IBM MQTT files 2. rename "esp-mqtt" to be "mqtt"
This commit is contained in:
Dong Heng
179
examples/protocols/mqtt/tcp/main/app_main.c
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179
examples/protocols/mqtt/tcp/main/app_main.c
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#include <stdio.h>
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#include <stdint.h>
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#include <stddef.h>
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#include <string.h>
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#include "esp_wifi.h"
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#include "esp_system.h"
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#include "nvs_flash.h"
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#include "esp_event_loop.h"
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#include "freertos/FreeRTOS.h"
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#include "freertos/task.h"
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#include "freertos/semphr.h"
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#include "freertos/queue.h"
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#include "freertos/event_groups.h"
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#include "lwip/sockets.h"
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#include "lwip/dns.h"
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#include "lwip/netdb.h"
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#include "esp_log.h"
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#include "mqtt_client.h"
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static const char *TAG = "MQTT_EXAMPLE";
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static EventGroupHandle_t wifi_event_group;
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const static int CONNECTED_BIT = BIT0;
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static esp_err_t mqtt_event_handler(esp_mqtt_event_handle_t event)
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{
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esp_mqtt_client_handle_t client = event->client;
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int msg_id;
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// your_context_t *context = event->context;
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switch (event->event_id) {
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case MQTT_EVENT_CONNECTED:
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ESP_LOGI(TAG, "MQTT_EVENT_CONNECTED");
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msg_id = esp_mqtt_client_publish(client, "/topic/qos1", "data_3", 0, 1, 0);
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ESP_LOGI(TAG, "sent publish successful, msg_id=%d", msg_id);
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msg_id = esp_mqtt_client_subscribe(client, "/topic/qos0", 0);
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ESP_LOGI(TAG, "sent subscribe successful, msg_id=%d", msg_id);
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msg_id = esp_mqtt_client_subscribe(client, "/topic/qos1", 1);
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ESP_LOGI(TAG, "sent subscribe successful, msg_id=%d", msg_id);
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msg_id = esp_mqtt_client_unsubscribe(client, "/topic/qos1");
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ESP_LOGI(TAG, "sent unsubscribe successful, msg_id=%d", msg_id);
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break;
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case MQTT_EVENT_DISCONNECTED:
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ESP_LOGI(TAG, "MQTT_EVENT_DISCONNECTED");
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break;
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case MQTT_EVENT_SUBSCRIBED:
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ESP_LOGI(TAG, "MQTT_EVENT_SUBSCRIBED, msg_id=%d", event->msg_id);
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msg_id = esp_mqtt_client_publish(client, "/topic/qos0", "data", 0, 0, 0);
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ESP_LOGI(TAG, "sent publish successful, msg_id=%d", msg_id);
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break;
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case MQTT_EVENT_UNSUBSCRIBED:
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ESP_LOGI(TAG, "MQTT_EVENT_UNSUBSCRIBED, msg_id=%d", event->msg_id);
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break;
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case MQTT_EVENT_PUBLISHED:
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ESP_LOGI(TAG, "MQTT_EVENT_PUBLISHED, msg_id=%d", event->msg_id);
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break;
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case MQTT_EVENT_DATA:
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ESP_LOGI(TAG, "MQTT_EVENT_DATA");
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printf("TOPIC=%.*s\r\n", event->topic_len, event->topic);
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printf("DATA=%.*s\r\n", event->data_len, event->data);
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break;
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case MQTT_EVENT_ERROR:
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ESP_LOGI(TAG, "MQTT_EVENT_ERROR");
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break;
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}
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return ESP_OK;
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}
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static esp_err_t wifi_event_handler(void *ctx, system_event_t *event)
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{
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/* For accessing reason codes in case of disconnection */
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system_event_info_t *info = &event->event_info;
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switch (event->event_id) {
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case SYSTEM_EVENT_STA_START:
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esp_wifi_connect();
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break;
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case SYSTEM_EVENT_STA_GOT_IP:
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xEventGroupSetBits(wifi_event_group, CONNECTED_BIT);
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break;
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case SYSTEM_EVENT_STA_DISCONNECTED:
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ESP_LOGE(TAG, "Disconnect reason : %d", info->disconnected.reason);
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if (info->disconnected.reason == WIFI_REASON_BASIC_RATE_NOT_SUPPORT) {
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/*Switch to 802.11 bgn mode */
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esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCAL_11B | WIFI_PROTOCAL_11G | WIFI_PROTOCAL_11N);
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}
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esp_wifi_connect();
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xEventGroupClearBits(wifi_event_group, CONNECTED_BIT);
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break;
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default:
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break;
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}
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return ESP_OK;
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}
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static void wifi_init(void)
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{
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tcpip_adapter_init();
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wifi_event_group = xEventGroupCreate();
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ESP_ERROR_CHECK(esp_event_loop_init(wifi_event_handler, NULL));
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wifi_init_config_t cfg = WIFI_INIT_CONFIG_DEFAULT();
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ESP_ERROR_CHECK(esp_wifi_init(&cfg));
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ESP_ERROR_CHECK(esp_wifi_set_storage(WIFI_STORAGE_RAM));
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wifi_config_t wifi_config = {
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.sta = {
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.ssid = CONFIG_WIFI_SSID,
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.password = CONFIG_WIFI_PASSWORD,
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},
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};
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ESP_ERROR_CHECK(esp_wifi_set_mode(WIFI_MODE_STA));
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ESP_ERROR_CHECK(esp_wifi_set_config(ESP_IF_WIFI_STA, &wifi_config));
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ESP_LOGI(TAG, "start the WIFI SSID:[%s]", CONFIG_WIFI_SSID);
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ESP_ERROR_CHECK(esp_wifi_start());
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ESP_LOGI(TAG, "Waiting for wifi");
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xEventGroupWaitBits(wifi_event_group, CONNECTED_BIT, false, true, portMAX_DELAY);
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}
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static void mqtt_app_start(void)
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{
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esp_mqtt_client_config_t mqtt_cfg = {
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.uri = CONFIG_BROKER_URL,
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.event_handle = mqtt_event_handler,
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// .user_context = (void *)your_context
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};
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#if CONFIG_BROKER_URL_FROM_STDIN
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char line[128];
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if (strcmp(mqtt_cfg.uri, "FROM_STDIN") == 0) {
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int count = 0;
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printf("Please enter url of mqtt broker\n");
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while (count < 128) {
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int c = fgetc(stdin);
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if (c == '\n') {
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line[count] = '\0';
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break;
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} else if (c > 0 && c < 127) {
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line[count] = c;
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++count;
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}
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vTaskDelay(10 / portTICK_PERIOD_MS);
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}
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mqtt_cfg.uri = line;
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printf("Broker url: %s\n", line);
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} else {
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ESP_LOGE(TAG, "Configuration mismatch: wrong broker url");
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abort();
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}
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#endif /* CONFIG_BROKER_URL_FROM_STDIN */
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esp_mqtt_client_handle_t client = esp_mqtt_client_init(&mqtt_cfg);
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esp_mqtt_client_start(client);
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}
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void app_main()
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{
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ESP_LOGI(TAG, "[APP] Startup..");
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ESP_LOGI(TAG, "[APP] Free memory: %d bytes", esp_get_free_heap_size());
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ESP_LOGI(TAG, "[APP] IDF version: %s", esp_get_idf_version());
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esp_log_level_set("*", ESP_LOG_INFO);
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esp_log_level_set("MQTT_CLIENT", ESP_LOG_VERBOSE);
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esp_log_level_set("TRANSPORT_TCP", ESP_LOG_VERBOSE);
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esp_log_level_set("TRANSPORT_SSL", ESP_LOG_VERBOSE);
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esp_log_level_set("TRANSPORT", ESP_LOG_VERBOSE);
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esp_log_level_set("OUTBOX", ESP_LOG_VERBOSE);
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nvs_flash_init();
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wifi_init();
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mqtt_app_start();
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}
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