forked from espressif/esp-protocols
137 lines
5.1 KiB
C++
137 lines
5.1 KiB
C++
/*
|
|
* SPDX-FileCopyrightText: 2023 Espressif Systems (Shanghai) CO LTD
|
|
*
|
|
* SPDX-License-Identifier: Unlicense OR CC0-1.0
|
|
*/
|
|
#include <stdio.h>
|
|
#include <stdint.h>
|
|
#include <stddef.h>
|
|
#include <string.h>
|
|
#include "esp_system.h"
|
|
#include "nvs_flash.h"
|
|
#include "esp_event.h"
|
|
#include "esp_netif.h"
|
|
#include "protocol_examples_common.h"
|
|
#include "esp_netif.h"
|
|
#include "esp_system.h"
|
|
|
|
#include "esp_log.h"
|
|
#include "mqtt_client.h"
|
|
|
|
static const char *TAG = "esp_mqtt_demo";
|
|
|
|
|
|
static void log_error_if_nonzero(const char *message, int error_code)
|
|
{
|
|
if (error_code != 0) {
|
|
ESP_LOGE(TAG, "Last error %s: 0x%x", message, error_code);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* @brief Event handler registered to receive MQTT events
|
|
*
|
|
* This function is called by the MQTT client event loop.
|
|
*
|
|
* @param handler_args user data registered to the event.
|
|
* @param base Event base for the handler(always MQTT Base in this example).
|
|
* @param event_id The id for the received event.
|
|
* @param event_data The data for the event, esp_mqtt_event_handle_t.
|
|
*/
|
|
static void mqtt_event_handler(void *handler_args, esp_event_base_t base, int32_t event_id, void *event_data)
|
|
{
|
|
ESP_LOGD(TAG, "Event dispatched from event loop base=%s, event_id=%d", base, event_id);
|
|
esp_mqtt_event_handle_t event = (esp_mqtt_event_handle_t)event_data;
|
|
esp_mqtt_client_handle_t client = event->client;
|
|
int msg_id;
|
|
switch ((esp_mqtt_event_id_t)event_id) {
|
|
case MQTT_EVENT_CONNECTED:
|
|
ESP_LOGI(TAG, "MQTT_EVENT_CONNECTED");
|
|
msg_id = esp_mqtt_client_publish(client, "/topic/qos1", "data_3", 0, 1, 0);
|
|
ESP_LOGI(TAG, "sent publish successful, msg_id=%d", msg_id);
|
|
|
|
msg_id = esp_mqtt_client_subscribe(client, "/topic/qos0", 0);
|
|
ESP_LOGI(TAG, "sent subscribe successful, msg_id=%d", msg_id);
|
|
|
|
msg_id = esp_mqtt_client_subscribe(client, "/topic/qos1", 1);
|
|
ESP_LOGI(TAG, "sent subscribe successful, msg_id=%d", msg_id);
|
|
|
|
msg_id = esp_mqtt_client_unsubscribe(client, "/topic/qos1");
|
|
ESP_LOGI(TAG, "sent unsubscribe successful, msg_id=%d", msg_id);
|
|
break;
|
|
case MQTT_EVENT_DISCONNECTED:
|
|
ESP_LOGI(TAG, "MQTT_EVENT_DISCONNECTED");
|
|
break;
|
|
|
|
case MQTT_EVENT_SUBSCRIBED:
|
|
ESP_LOGI(TAG, "MQTT_EVENT_SUBSCRIBED, msg_id=%d", event->msg_id);
|
|
msg_id = esp_mqtt_client_publish(client, "/topic/qos0", "data", 0, 0, 0);
|
|
ESP_LOGI(TAG, "sent publish successful, msg_id=%d", msg_id);
|
|
break;
|
|
case MQTT_EVENT_UNSUBSCRIBED:
|
|
ESP_LOGI(TAG, "MQTT_EVENT_UNSUBSCRIBED, msg_id=%d", event->msg_id);
|
|
break;
|
|
case MQTT_EVENT_PUBLISHED:
|
|
ESP_LOGI(TAG, "MQTT_EVENT_PUBLISHED, msg_id=%d", event->msg_id);
|
|
break;
|
|
case MQTT_EVENT_DATA:
|
|
ESP_LOGI(TAG, "MQTT_EVENT_DATA");
|
|
printf("TOPIC=%.*s\r\n", event->topic_len, event->topic);
|
|
printf("DATA=%.*s\r\n", event->data_len, event->data);
|
|
break;
|
|
case MQTT_EVENT_ERROR:
|
|
ESP_LOGI(TAG, "MQTT_EVENT_ERROR");
|
|
if (event->error_handle->error_type == MQTT_ERROR_TYPE_TCP_TRANSPORT) {
|
|
log_error_if_nonzero("reported from esp-tls", event->error_handle->esp_tls_last_esp_err);
|
|
log_error_if_nonzero("reported from tls stack", event->error_handle->esp_tls_stack_err);
|
|
log_error_if_nonzero("captured as transport's socket errno", event->error_handle->esp_transport_sock_errno);
|
|
ESP_LOGI(TAG, "Last errno string (%s)", strerror(event->error_handle->esp_transport_sock_errno));
|
|
|
|
}
|
|
break;
|
|
default:
|
|
ESP_LOGI(TAG, "Other event id:%d", event->event_id);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void mqtt_app_start(void)
|
|
{
|
|
esp_mqtt_client_config_t mqtt_cfg = {};
|
|
mqtt_cfg.broker.address.uri = CONFIG_BROKER_URL;
|
|
mqtt_cfg.credentials.client_id = "idf_on_linux_client";
|
|
|
|
esp_mqtt_client_handle_t client = esp_mqtt_client_init(&mqtt_cfg);
|
|
/* The last argument may be used to pass data to the event handler, in this example mqtt_event_handler */
|
|
esp_mqtt_client_register_event(client, (esp_mqtt_event_id_t)ESP_EVENT_ANY_ID, mqtt_event_handler, NULL);
|
|
esp_mqtt_client_start(client);
|
|
}
|
|
|
|
|
|
extern "C" void app_main(void)
|
|
{
|
|
ESP_LOGI(TAG, "[APP] Startup..");
|
|
ESP_LOGI(TAG, "[APP] Free memory: %d bytes", esp_get_free_heap_size());
|
|
ESP_LOGI(TAG, "[APP] IDF version: %s", esp_get_idf_version());
|
|
|
|
esp_log_level_set("*", ESP_LOG_INFO);
|
|
esp_log_level_set("mqtt_client", ESP_LOG_VERBOSE);
|
|
esp_log_level_set("esp_mqtt_demo", ESP_LOG_VERBOSE);
|
|
esp_log_level_set("transport_base", ESP_LOG_VERBOSE);
|
|
esp_log_level_set("esp-tls", ESP_LOG_VERBOSE);
|
|
esp_log_level_set("transport", ESP_LOG_VERBOSE);
|
|
esp_log_level_set("outbox", ESP_LOG_VERBOSE);
|
|
|
|
ESP_ERROR_CHECK(nvs_flash_init());
|
|
ESP_ERROR_CHECK(esp_netif_init());
|
|
ESP_ERROR_CHECK(esp_event_loop_create_default());
|
|
|
|
/* This helper function configures Wi-Fi or Ethernet, as selected in menuconfig.
|
|
* Read "Establishing Wi-Fi or Ethernet Connection" section in
|
|
* examples/protocols/README.md for more information about this function.
|
|
*/
|
|
ESP_ERROR_CHECK(example_connect());
|
|
|
|
mqtt_app_start();
|
|
}
|