From 25138d82a0eece32087a3e195342ddf6ba778ddf Mon Sep 17 00:00:00 2001
From: Alexander Krotov <krotov@iitp.ru>
Date: Sat, 23 May 2020 05:19:16 +0300
Subject: [PATCH] wifi-rate-adaptation-distance: use ConnectFailSafe for
 RateChange

RateChange trace does not exist for most RemoteStationManagers,
e.g. Minstrel.
---
 examples/wireless/wifi-rate-adaptation-distance.cc | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/examples/wireless/wifi-rate-adaptation-distance.cc b/examples/wireless/wifi-rate-adaptation-distance.cc
index ca171c50a..d98ddd36d 100644
--- a/examples/wireless/wifi-rate-adaptation-distance.cc
+++ b/examples/wireless/wifi-rate-adaptation-distance.cc
@@ -345,8 +345,8 @@ int main (int argc, char *argv[])
                    MakeCallback (&NodeStatistics::RxCallback, &atpCounter));
 
   //Callbacks to print every change of rate
-  Config::Connect ("/NodeList/0/DeviceList/*/$ns3::WifiNetDevice/RemoteStationManager/$" + apManager + "/RateChange",
-                   MakeCallback (RateCallback));
+  Config::ConnectFailSafe ("/NodeList/0/DeviceList/*/$ns3::WifiNetDevice/RemoteStationManager/$" + apManager + "/RateChange",
+                           MakeCallback (RateCallback));
 
   Simulator::Stop (Seconds (simuTime));
   Simulator::Run ();