decreased verbosity, send MQTT ping every 2 minutes to avoid disconnect.

apps/aqhome-mqttlog/main.c

@@ -47,6 +47,8 @@
 #define I18N(msg) msg
 #define I18S(msg) msg
 
+#define AQHOME_MQTTLOG_PING_INTERVAL 120
+
 //#define FULL_DEBUG
 
 
@@ -146,6 +148,7 @@ int _serve(GWEN_DB_NODE *dbArgs)
   int rv;
   int timeout;
   time_t startTime;
+  time_t lastPingSendTime;
   const char *baseFolder;
 
   startTime=time(NULL);
@@ -196,6 +199,8 @@ int _serve(GWEN_DB_NODE *dbArgs)
     return rv;
   }
 
+  lastPingSendTime=time(NULL);
+
   while(!stopService) {
     DBG_DEBUG(NULL, "Next loop");
     GWEN_MsgEndpoint2_IoLoop(epTcp, 2000); /* 2000 ms */
@@ -222,7 +227,10 @@ int _serve(GWEN_DB_NODE *dbArgs)
 	  GWEN_Buffer_free(buf);
 #endif
 	  AqHomeMqttLog_HandlePublishMsg(baseFolder, itemList, msg);
-	}
+        }
+        else if ((AQH_MqttMsg_GetMsgTypeAndFlags(msg) & 0xf0)==(AQH_MQTTMSG_MSGTYPE_PINGRESP & 0xf0)) {
+          DBG_INFO(AQH_LOGDOMAIN, "PING response received");
+        }
 	else {
 #ifdef FULL_DEBUG
 	  DBG_ERROR(NULL, "Received this message:");
@@ -232,13 +240,26 @@ int _serve(GWEN_DB_NODE *dbArgs)
 	GWEN_Msg_free(msg);
       }
     }
+
     if (timeout) {
       time_t now;
 
       now=time(NULL);
       if ((now-startTime)>timeout) {
-	DBG_INFO(NULL, "Timeout, stopping service");
-	break;
+        DBG_INFO(NULL, "Timeout, stopping service");
+        break;
+      }
+    }
+    if (1){
+      time_t now;
+
+      now=time(NULL);
+      if (now-lastPingSendTime>AQHOME_MQTTLOG_PING_INTERVAL) {
+        rv=AqHomeMqttLog_Ping(epTcp);
+        if (rv<0) {
+          DBG_INFO(NULL, "Error sending PING");
+        }
+        lastPingSendTime=time(NULL);
       }
     }
   }