upgrad esp mqtt lib

lib/espMqttClient/src/MqttClient.h

@@ -65,17 +65,13 @@ class MqttClient {
   uint16_t publish(const char* topic, uint8_t qos, bool retain, espMqttClientTypes::PayloadCallback callback, size_t length);
   void clearQueue(bool deleteSessionData = false);  // Not MQTT compliant and may cause unpredictable results when `deleteSessionData` = true!
   const char* getClientId() const;
-  #if defined(ARDUINO_ARCH_ESP32)
+  void loop();
 
  protected:
-  #endif
-  void loop();
   #if defined(ARDUINO_ARCH_ESP32)
   explicit MqttClient(bool useTask, uint8_t priority = 1, uint8_t core = 1);
   bool _useTask;
   #else
-
- protected:
   MqttClient();
   #endif
   espMqttClientInternals::Transport* _transport;
@@ -102,6 +98,7 @@ class MqttClient {
   uint16_t _willPayloadLength;
   uint8_t _willQos;
   bool _willRetain;
+  uint32_t _timeout;
 
   // state is protected to allow state changes by the transport system, defined in child classes
   // eg. to allow AsyncTCP
@@ -166,6 +163,7 @@ class MqttClient {
   bool _advanceOutbox();
   void _checkIncoming();
   void _checkPing();
+  void _checkTimeout();
 
   void _onConnack();
   void _onPublish();