Basic xdot code to check how many memory is available for user APP after initializing libxdot lorawan stack

Revision:
33:15ea8f985c54
Parent:
31:b1d5811e3d5d
Child:
42:20f6b29a9903
--- a/examples/src/dot_util.cpp	Thu Sep 13 15:32:55 2018 -0500
+++ b/examples/src/dot_util.cpp	Wed Apr 24 12:50:08 2019 +0000
@@ -708,7 +708,7 @@
 #endif
 }
 
-void send_data(std::vector<uint8_t> data) {
+int send_data(std::vector<uint8_t> data) {
     int32_t ret;
 
     ret = dot->send(data);
@@ -717,5 +717,7 @@
     } else {
         logInfo("successfully sent data to %s", dot->getJoinMode() == mDot::PEER_TO_PEER ? "peer" : "gateway");
     }
+
+    return ret;
 }