Merge branch 'bugfix/mqtt_cpp_build' into 'master'

MQTT: Fix C++ build issue

Closes IDFGH-2717

See merge request espressif/esp-idf!7722
This commit is contained in:
David Čermák 2020-03-03 17:20:32 +08:00
commit 54d7001654
5 changed files with 117 additions and 1 deletions

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Subproject commit 9e20c7ae3d6951cab3ed8dc66a0467da5bf37f16
Subproject commit 8a1e1a5a9ffce89313aaa209375e1def893a4c73

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# The following four lines of boilerplate have to be in your project's CMakeLists
# in this exact order for cmake to work correctly
cmake_minimum_required(VERSION 3.5)
# (Not part of the boilerplate)
# This example uses an extra component for common functions such as Wi-Fi and Ethernet connection.
set(EXTRA_COMPONENT_DIRS $ENV{IDF_PATH}/examples/common_components/protocol_examples_common)
include($ENV{IDF_PATH}/tools/cmake/project.cmake)
project(mqtt_tcp)

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# Build only test for C++
This test app ensures that calling all mqtt-client API could be called from C++

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idf_component_register(SRCS "mqtt_app.cpp"
INCLUDE_DIRS ".")

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/* Build only example to check mqtt client API from C++
This example code is in the Public Domain (or CC0 licensed, at your option.)
Unless required by applicable law or agreed to in writing, this
software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
CONDITIONS OF ANY KIND, either express or implied.
*/
#include <stdint.h>
#include "esp_system.h"
#include "nvs_flash.h"
#include "esp_event.h"
#include "esp_netif.h"
#include "esp_log.h"
#include "mqtt_client.h"
static const char *TAG = "MQTT_EXAMPLE";
static esp_err_t mqtt_event_handler_cb(esp_mqtt_event_handle_t event)
{
switch (event->event_id) {
case MQTT_EVENT_CONNECTED:
ESP_LOGI(TAG, "MQTT_EVENT_CONNECTED");
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);
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");
break;
case MQTT_EVENT_ERROR:
ESP_LOGI(TAG, "MQTT_EVENT_ERROR");
break;
default:
ESP_LOGI(TAG, "Other event id:%d", event->event_id);
break;
}
return ESP_OK;
}
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);
mqtt_event_handler_cb((esp_mqtt_event_handle_t)event_data);
}
static void mqtt_app_start(void)
{
esp_mqtt_client_config_t mqtt_cfg = { };
esp_mqtt_client_handle_t client = esp_mqtt_client_init(&mqtt_cfg);
esp_mqtt_client_register_event(client, MQTT_EVENT_ANY, mqtt_event_handler, client);
esp_mqtt_client_start(client);
esp_mqtt_set_config(client, &mqtt_cfg);
int msg_id = esp_mqtt_client_publish(client, "/topic/qos1", "data", 0, 0, 0);
ESP_LOGI(TAG, "mqtt api returned %d", msg_id);
msg_id = esp_mqtt_client_subscribe(client, "/topic/qos0", 0);
ESP_LOGI(TAG, "mqtt api returned %d", msg_id);
msg_id = esp_mqtt_client_subscribe(client, "/topic/qos1", 1);
ESP_LOGI(TAG, "mqtt api returned %d", msg_id);
msg_id = esp_mqtt_client_unsubscribe(client, "/topic/qos1");
ESP_LOGI(TAG, "mqtt api returned %d", msg_id);
esp_err_t err = esp_mqtt_client_set_uri(client, "mqtt://localhost:1883");
ESP_LOGI(TAG, "mqtt api returned %d", err);
err = esp_mqtt_client_reconnect(client);
err = esp_mqtt_client_disconnect(client);
err = esp_mqtt_client_stop(client);
err = esp_mqtt_client_destroy(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("MQTT_EXAMPLE", ESP_LOG_VERBOSE);
esp_log_level_set("TRANSPORT_TCP", ESP_LOG_VERBOSE);
esp_log_level_set("TRANSPORT_SSL", 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());
mqtt_app_start();
}