119 lines
3.5 KiB
C
Executable File
119 lines
3.5 KiB
C
Executable File
/*******************************************************************************
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* Copyright (c) 2014 IBM Corp.
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*
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* All rights reserved. This program and the accompanying materials
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* are made available under the terms of the Eclipse Public License v1.0
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* and Eclipse Distribution License v1.0 which accompany this distribution.
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*
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* The Eclipse Public License is available at
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* http://www.eclipse.org/legal/epl-v10.html
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* and the Eclipse Distribution License is available at
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* http://www.eclipse.org/org/documents/edl-v10.php.
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*
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* Contributors:
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* Ian Craggs - initial API and implementation and/or initial documentation
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*******************************************************************************/
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#include <stddef.h>
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#include "freertos/FreeRTOS.h"
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#include "freertos/task.h"
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#include "mqtt/MQTTClient.h"
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#include "user_config.h"
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#define MQTT_CLIENT_THREAD_NAME "mqtt_client_thread"
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#define MQTT_CLIENT_THREAD_STACK_WORDS 2048
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#define MQTT_CLIENT_THREAD_PRIO 8
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LOCAL xTaskHandle mqttc_client_handle;
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static void messageArrived(MessageData* data)
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{
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printf("Message arrived: %s\n", data->message->payload);
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}
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static void mqtt_client_thread(void* pvParameters)
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{
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printf("mqtt client thread starts\n");
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MQTTClient client;
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Network network;
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unsigned char sendbuf[80], readbuf[80] = {0};
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int rc = 0, count = 0;
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MQTTPacket_connectData connectData = MQTTPacket_connectData_initializer;
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pvParameters = 0;
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NetworkInit(&network);
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MQTTClientInit(&client, &network, 30000, sendbuf, sizeof(sendbuf), readbuf, sizeof(readbuf));
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char* address = MQTT_BROKER;
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if ((rc = NetworkConnect(&network, address, MQTT_PORT)) != 0) {
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printf("Return code from network connect is %d\n", rc);
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}
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#if defined(MQTT_TASK)
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if ((rc = MQTTStartTask(&client)) != pdPASS) {
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printf("Return code from start tasks is %d\n", rc);
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} else {
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printf("Use MQTTStartTask\n");
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}
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#endif
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connectData.MQTTVersion = 3;
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connectData.clientID.cstring = "ESP8266_sample";
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if ((rc = MQTTConnect(&client, &connectData)) != 0) {
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printf("Return code from MQTT connect is %d\n", rc);
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} else {
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printf("MQTT Connected\n");
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}
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if ((rc = MQTTSubscribe(&client, "ESP8266/sample/sub", 2, messageArrived)) != 0) {
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printf("Return code from MQTT subscribe is %d\n", rc);
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} else {
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printf("MQTT subscribe to topic \"ESP8266/sample/sub\"\n");
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}
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while (++count) {
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MQTTMessage message;
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char payload[30];
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message.qos = QOS2;
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message.retained = 0;
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message.payload = payload;
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sprintf(payload, "message number %d", count);
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message.payloadlen = strlen(payload);
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if ((rc = MQTTPublish(&client, "ESP8266/sample/pub", &message)) != 0) {
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printf("Return code from MQTT publish is %d\n", rc);
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} else {
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printf("MQTT publish topic \"ESP8266/sample/pub\", message number is %d\n", count);
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}
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vTaskDelay(1000 / portTICK_RATE_MS); //send every 1 seconds
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}
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printf("mqtt_client_thread going to be deleted\n");
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vTaskDelete(NULL);
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return;
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}
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void user_conn_init(void)
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{
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int ret;
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ret = xTaskCreate(mqtt_client_thread,
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MQTT_CLIENT_THREAD_NAME,
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MQTT_CLIENT_THREAD_STACK_WORDS,
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NULL,
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MQTT_CLIENT_THREAD_PRIO,
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&mqttc_client_handle);
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if (ret != pdPASS) {
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printf("mqtt create client thread %s failed\n", MQTT_CLIENT_THREAD_NAME);
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}
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}
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