Changing name of constante MQTT_BUFFER_SIZE to MQTT_RECEIVE_BUFFER_SIZE in order to better signal the purpose of the constant

Author: aentinger

src/ArduinoIoTCloud.cpp

@@ -11,7 +11,7 @@ const static int thingIdSlot                               = 12;
 ArduinoIoTCloudClass::ArduinoIoTCloudClass() :
   _thing_id     (""),
   _bearSslClient(NULL),
-  _mqttClient   (MQTT_BUFFER_SIZE)
+  _mqttClient   (MQTT_RECEIVE_BUFFER_SIZE)
 {
 }
 
@@ -158,7 +158,7 @@ void ArduinoIoTCloudClass::update(int const reconnectionMaxRetries, int const re
   // MTTQClient connected!, poll() used to retrieve data from MQTT broker
   _mqttClient.loop();
 
-  uint8_t data[MQTT_BUFFER_SIZE];
+  uint8_t data[MQTT_RECEIVE_BUFFER_SIZE];
   int const length = Thing.encode(data, sizeof(data));
   if (length > 0) {
     writeProperties(data, length);

src/ArduinoIoTCloud.h

@@ -29,7 +29,7 @@ class ArduinoIoTCloudClass {
   int begin(Client& net, String brokerAddress = "mqtts-sa.iot.arduino.cc");
 
   // Class constant declaration
-  static const int MQTT_BUFFER_SIZE = 256;
+  static const int MQTT_RECEIVE_BUFFER_SIZE = 256;
   static const int MAX_RETRIES = 5;
   static const int RECONNECTION_TIMEOUT = 2000;
   const mqttConnectionOptions mqttOpt = {30, false, 1500};