Improve packet-histogram scripts

Add prints on _packet-histogram-stop
Allow packet-histogram to start multiple tests

scripts/_packet-histogram-stop

@@ -83,13 +83,17 @@ fi
 
 if [ -n "$client_histogram" ]; then
 
-    ssh -t $client_board "echo olimex | sudo -S killall client";
-    ssh -t $server_board "echo olimex | sudo -S killall server";
+  echo "Killing client ($client_board)...";
+  ssh -t $client_board "echo olimex | sudo -S killall client";
+  echo "Killing server ($server_board)...";
+  ssh -t $server_board "echo olimex | sudo -S killall server";
 
+  echo "Copying $output...";
   scp $client_board:$output $script_dir/;
 
   cd $script_dir/../measure-analysis;
 
+  echo "Writing metadata...";
   cat > client_metadata << EndOfMessage
 {"ker": "$kernel_version"}
 EndOfMessage
@@ -101,13 +105,17 @@ EndOfMessage
   
 elif [ -n "$server_histogram" ]; then
 
+  echo "Killing server ($server_board)...";
   ssh -t $server_board "echo olimex | sudo -S killall server";
+  echo "Killing client ($client_board)...";
   ssh -t $client_board "echo olimex | sudo -S killall client";
 
+  echo "Copying $output";
   scp $server_board:$output $script_dir/;
 
   cd $script_dir/../measure-analysis;
 
+  echo "Writing metadata...";
   if [ -n "$server_etf" ]; then
 
     cat > server_metadata << EndOfMessage
@@ -136,6 +144,7 @@ EndOfMessage
   
 elif [ -n "$cyclictest_histogram" ]; then
 
+  echo "Killing cyclictest on $board...";
   ssh -t $board "echo olimex | sudo -S killall cyclictest";
 
   if [ -n "$stop_load" ]; then
@@ -147,6 +156,7 @@ elif [ -n "$cyclictest_histogram" ]; then
 
   cd $script_dir/../measure-analysis;
 
+  echo "Writing metadata...";
   if [ -n "$stop_load" ]; then
 
     cat > cyclictest_metadata << EndOfMessage

scripts/packet-histogram-start

@@ -81,13 +81,22 @@ else
   usage
 fi
 
+stop_opt_name=packet-histogram_stop-options
+stop_opt_index=0
+
+while [ -f "${stop_opt_name}${stop_opt_index}" ]; do
+  stop_opt_index=$(( $stop_opt_index + 1 ))
+done
+
+stop_opt_filename=${stop_opt_name}${stop_opt_index}
+
 # Client histogram
 if [ -n "$client_histogram" ]; then
 
   $script_dir/exec-ssh-nohup $server_board "run-server";
   $script_dir/exec-ssh-nohup $client_board "run-client -p -i $interval -t -g $server_board";
 
-  echo "$stop_opts -c client_i${interval}_pfast -i $interval $client_board $server_board" > $script_dir/packet-histogram-stop_options;
+  echo "$stop_opts -c client_i${interval}_pfast -i $interval $client_board $server_board" > $script_dir/${stop_opt_filename};
 
 # Server histogram
 elif [ -n "$server_histogram" ]; then
@@ -97,7 +106,7 @@ elif [ -n "$server_histogram" ]; then
     $script_dir/exec-ssh-nohup $server_board "run-server -g ${interval}$server_opts";
     $script_dir/exec-ssh-nohup $client_board "run-client -p -i $interval $server_board";
 
-    echo "$stop_opts -s server_i${interval} $server_opts -p $client_board $server_board" > $script_dir/packet-histogram-stop_options;
+    echo "$stop_opts -s server_i${interval} $server_opts -p $client_board $server_board" > $script_dir/${stop_opt_filename};
 
   # Server ETF qdisc histogram
   elif [ -n "$server_etf" ]; then
@@ -105,7 +114,7 @@ elif [ -n "$server_histogram" ]; then
     $script_dir/exec-ssh-nohup $server_board "run-server -g ${interval}$server_opts";
     $script_dir/exec-ssh-nohup $client_board "run-client -e $etf_delta -o $etf_offset -i $interval $server_board";
 
-    echo "$stop_opts -s server_i${interval} $server_opts -e $etf_delta -o $etf_offset $client_board $server_board" > $script_dir/packet-histogram-stop_options;
+    echo "$stop_opts -s server_i${interval} $server_opts -e $etf_delta -o $etf_offset $client_board $server_board" > $script_dir/${stop_opt_filename};
 
   else
     echo "Server histogram requires choosing between pfifo_fast or etf qdisc";
@@ -116,6 +125,6 @@ elif [ -n "$cyclictest_histogram" ]; then
 
   $script_dir/exec-ssh-nohup $board "run-cyclictest -g $cyclictest_opts -i $interval";
 
-  echo "$stop_opts -C cyclictest_hist $cyclictest_opts $board" > $script_dir/packet-histogram-stop_options;
+  echo "$stop_opts -C cyclictest_hist $cyclictest_opts $board" > $script_dir/${stop_opt_filename};
 
 fi

scripts/packet-histogram-stop

 #!/bin/bash
 
+usage() {
+  echo "Usage: $0 STOP_OPTIONS_INDEX" 1>&2;
+  exit 1;
+}
+
+if [ -z "$1" ]; then
+  usage
+fi
+
 script_dir=$(dirname $(realpath $0))
 
-$script_dir/_packet-histogram-stop `cat packet-histogram-stop_options`;
-rm packet-histogram-stop_options
+stop_opt_name=packet-histogram_stop-options
+stop_opt_index=$1
+stop_opt_filename=${stop_opt_name}${stop_opt_index}
+
+echo "$script_dir/_packet-histogram-stop `cat $stop_opt_filename`";
+cat_out=`cat $stop_opt_filename`;
+echo "cat_out = $cat_out";
+$script_dir/_packet-histogram-stop `cat $stop_opt_filename`;
+rm $stop_opt_filename