Fix LPWAN build

Author: pennam

Diff for: src/ArduinoIoTCloud.cpp

@@ -27,7 +27,9 @@
 
 ArduinoIoTCloudClass::ArduinoIoTCloudClass()
 : _connection{nullptr}
+#ifdef HAS_TCP
 , _client{nullptr}
+#endif
 , _adapter{NetworkAdapter::WIFI}
 , _last_checked_property_index{0}
 , _time_service(TimeService)

Diff for: src/ArduinoIoTCloud.h

@@ -103,7 +103,9 @@ class ArduinoIoTCloudClass
     inline bool     deviceNotAttached()                 { return _thing_id == ""; }
 
     inline ConnectionHandler * getConnection()          { return _connection; }
+#ifdef HAS_TCP
     inline Client * getClient()                         { return _client; }
+#endif
 
 
     inline unsigned long getInternalTime()              { return _time_service.getTime(); }
@@ -155,7 +157,9 @@ class ArduinoIoTCloudClass
   protected:
 
     ConnectionHandler * _connection;
+#ifdef HAS_TCP
     Client * _client;
+#endif
     NetworkAdapter _adapter;
     PropertyContainer _device_property_container;
     PropertyContainer _thing_property_container;

Diff for: src/ArduinoIoTCloudLPWAN.cpp

@@ -68,7 +68,7 @@ int ArduinoIoTCloudLPWAN::begin(ConnectionHandler& connection, bool retry)
 {
   _connection = &connection;
   _retryEnable = retry;
-  _time_service.begin(nullptr);
+  _time_service.begin();
   return 1;
 }
 

Diff for: src/utility/time/TimeService.cpp

@@ -126,13 +126,18 @@ TimeServiceClass::TimeServiceClass()
  **************************************************************************************/
 
 void TimeServiceClass::begin(UDP & udp)
+{
+  _udp = &udp;
+
+  begin();
+}
+
+void TimeServiceClass::begin()
 {
   initRTC();
 #ifdef HAS_LORA
   setRTC(EPOCH_AT_COMPILE_TIME);
 #endif
-
-  _udp = &udp;
 }
 
 unsigned long TimeServiceClass::getTime()

Diff for: src/utility/time/TimeService.h

@@ -42,7 +42,8 @@ class TimeServiceClass
 
   TimeServiceClass();
 
-  void          begin  (UDP & udp);
+  void          begin(UDP & udp);
+  void          begin();
   unsigned long getTime();
   void          setTime(unsigned long time);
   unsigned long getLocalTime();