Update wrapper script to include etf offset

scripts/run_client

@@ -3,7 +3,7 @@
 script_dir=$(dirname $(realpath $0))
 
 usage() {
-  echo "Usage: $0 (-e delta | -p) [-bg] [-i INTERVAL] [-d TX_BUFFER_LEN] [emerald|slate|onyx]" 1>&2;
+  echo "Usage: $0 (-e delta [-o etf_offset] | -p) [-bg] [-i INTERVAL] [-d TX_BUFFER_LEN] [emerald|slate|onyx]" 1>&2;
   exit 1;
 }
 
@@ -14,8 +14,9 @@ interval=100000
 client_options="-a -p 99 -f eth0"
 qdisc_options=""
 ip="192.168.99."
+etf_offset=500
 
-while getopts "bd:e:ghi:p" opt; do
+while getopts "bd:e:o:ghi:p" opt; do
   case "${opt}" in
     b )
         client_options+=" -b"
@@ -25,10 +26,12 @@ while getopts "bd:e:ghi:p" opt; do
         ;;
     e )
         use_etf=1
-        client_options+=" -e -q 8"
         delta=${OPTARG}
         qdisc_options+="-e $delta"
         ;;
+    o )
+        etf_offset=${OPTARG}
+        ;;
     g )
         client_options+=" -g -t"
         use_histogram=1
@@ -86,6 +89,10 @@ else
   fi
 fi
 
+if [ -n "${use_etf}" ]; then
+  client_options+=" -e etf_offset -q 8"
+fi
+
 client_options+=" -i $interval"
 
 echo "create_qdisc $qdisc_options";