tests/mutexcheck.sh

   1 #!/bin/bash
   2 #
   3 # A thread mutex deadlock checker. Note that your systems sleep(1) program
   4 # should be able to accept floating point time arguments.
   5 #
   6 # Try running as: mutexcheck.sh 200 0.0 35 0.5
   7 #
   8 if [ $# -ne 4 ]; then
   9     echo "Usage: $0 total_clients delay burst_clients burst_delay"
  10     exit 1
  11 fi
  12
  13 TOTAL=$1
  14 DELAY=$2
  15 BCLIENTS=$3
  16 BDELAY=$4
  17 COUNT=0
  18
  19 source common.sh
  20 source import-common.sh
  21
  22 do_import list
  23
  24 cat > config << EOF
  25 [global]
  26 log_level=9
  27 #enable_logging=true
  28 [list]
  29 passphrase_file=`pwd`/list.key
  30 EOF
  31
  32 launch_pwmd list
  33
  34 while [ $COUNT -lt $TOTAL ]; do
  35     {
  36         n=$BCLIENTS
  37         while [ $n -gt 0 ]; do
  38             {
  39                 sleep $BDELAY; echo -ne 'LIST' | \
  40                     pwmc $PWMC_ARGS --quiet list > /dev/null;
  41             } &
  42
  43         n=$(($n - 1));
  44         done;
  45     } &
  46
  47     COUNT=$(($COUNT + $BCLIENTS));
  48     echo "Forked $COUNT total clients.";
  49     sleep $DELAY;
  50 done
  51
  52 kill $PWMD_PID
  53
  54 while true; do
  55     kill -n 0 $PWMD_PID 2>/dev/null
  56     if [ $? -eq 0 ]; then
  57         echo "Pwmd is still running. Press Ctrl-C to interrupt."
  58         sleep 1
  59     else
  60         break
  61     fi
  62 done
  63
  64 on_exit