Refactor MQTT callback function names for consistency. Changed MessageCallback and ConnectionCallback to MessageCb and ConnectionCb in mqtt.hpp, mqtt.cpp, and custom_robot.cpp to improve code clarity and maintainability.

src/mqtt.cpp

@@ -13,13 +13,11 @@ MqttClient::MqttClient(const std::string& broker, int port, const std::string& c
     ss << "tcp://" << broker << ":" << port;
     serverURI_ = ss.str();
     
-    // 初始化连接选项
     connOpts_ = MQTTClient_connectOptions_initializer;
     connOpts_.keepAliveInterval = 20;
     connOpts_.cleansession = 1;
     connOpts_.reliable = 0;  // 异步发送
     
-    // 创建 MQTT 客户端
     int rc = MQTTClient_create(&client_, serverURI_.c_str(), clientId_.c_str(),
                                MQTTCLIENT_PERSISTENCE_NONE, nullptr);
     if (rc != MQTTCLIENT_SUCCESS) {
@@ -27,7 +25,6 @@ MqttClient::MqttClient(const std::string& broker, int port, const std::string& c
         return;
     }
     
-    // 设置回调函数
     MQTTClient_setCallbacks(client_, this, connectionLostCallback, 
                            messageArrivedCallback, deliveryCompleteCallback);
 }
@@ -74,13 +71,11 @@ bool MqttClient::connect(const std::string& username, const std::string& passwor
         return false;
     }
     
-    // 重置连接选项
     connOpts_ = MQTTClient_connectOptions_initializer;
     connOpts_.keepAliveInterval = 20;
     connOpts_.cleansession = 1;
     connOpts_.reliable = 0;
     
-    // 设置用户名和密码
     if (!username_.empty()) {
         connOpts_.username = username_.c_str();
         if (!password_.empty()) {
@@ -192,12 +187,12 @@ bool MqttClient::publishJson(const std::string& topic, const nlohmann::json& jso
     return publish(topic, json.dump(), qos, retain);
 }
 
-void MqttClient::setMessageCallback(MessageCallback callback) {
-    messageCallback_ = callback;
+void MqttClient::setMessageCb(MessageCb cb) {
+    messageCb_ = cb;
 }
 
-void MqttClient::setConnectionCallback(ConnectionCallback callback) {
-    connectionCallback_ = callback;
+void MqttClient::setConnectionCb(ConnectionCb cb) {
+    connectionCb_ = cb;
 }
 
 void MqttClient::startMessageProcessor() {
@@ -237,9 +232,9 @@ void MqttClient::processMessageQueue() {
             messageQueue_.pop();
             lock.unlock();
             
-            if (messageCallback_) {
+            if (messageCb_) {
                 try {
-                    messageCallback_(message.topic, message.payload);
+                    messageCb_(message.topic, message.payload);
                 } catch (const std::exception& e) {
                     LOG_ERROR("Exception in message callback: " + std::string(e.what()));
                 }
@@ -250,7 +245,6 @@ void MqttClient::processMessageQueue() {
     }
 }
 
-// C 风格回调函数实现
 int MqttClient::messageArrivedCallback(void* context, char* topicName, int topicLen, MQTTClient_message* message) {
     MqttClient* client = static_cast<MqttClient*>(context);
     
@@ -270,7 +264,7 @@ int MqttClient::messageArrivedCallback(void* context, char* topicName, int topic
     MQTTClient_freeMessage(&message);
     MQTTClient_free(topicName);
     
-    return 1;  // 成功处理消息
+    return 1; 
 }
 
 void MqttClient::connectionLostCallback(void* context, char* cause) {
@@ -282,14 +276,14 @@ void MqttClient::connectionLostCallback(void* context, char* cause) {
 }
 
 void MqttClient::deliveryCompleteCallback(void* context, MQTTClient_deliveryToken dt) {
-    // 消息发送完成回调，目前不需要特殊处理
+
 }
 
 void MqttClient::handleConnectionLost() {
     connected_ = false;
     
-    if (connectionCallback_) {
-        connectionCallback_(false);
+    if (connectionCb_) {
+        connectionCb_(false);
     }
     
     if (shouldReconnect_ && !reconnecting_) {
@@ -303,8 +297,8 @@ void MqttClient::handleConnectionEstablished() {
     reconnecting_ = false;
     LOG_INFO("MQTT connection established");
     
-    if (connectionCallback_) {
-        connectionCallback_(true);
+    if (connectionCb_) {
+        connectionCb_(true);
     }
 }