tests/stress/kill_relayd

   1 #!/bin/bash
   2 #
   3 # Copyright (C) - 2013 David Goulet <dgoulet@efficios.com>
   4 #
   5 # This library is free software; you can redistribute it and/or modify it under
   6 # the terms of the GNU Lesser General Public License as published by the Free
   7 # Software Foundation; version 2.1 of the License.
   8 #
   9 # This library is distributed in the hope that it will be useful, but WITHOUT
  10 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
  11 # FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more
  12 # details.
  13 #
  14 # You should have received a copy of the GNU Lesser General Public License
  15 # along with this library; if not, write to the Free Software Foundation, Inc.,
  16 # 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA
  17
  18 CURDIR=$(dirname $0)/
  19 TESTDIR=$CURDIR/..
  20 # We use the .libs/ binary since it's run from the repository.
  21 REPO_RELAYD_BIN="lt-lttng-relayd"
  22
  23 # Number of seconds the we sleep before killing the relayd. If RANDOM_KILL is
  24 # defined, it's between 1 and 10 seconds.
  25 NR_SEC=10
  26
  27 KILL_LOOP=0
  28 RANDOM_KILL=0
  29
  30 source $TESTDIR/utils/utils.sh
  31
  32 function get_random()
  33 {
  34         return $(echo $RANDOM % $NR_SEC + 1 | bc)
  35 }
  36
  37 function kill_relayd()
  38 {
  39         if [ $RANDOM_KILL -eq 1 ]; then
  40                 # Something between 1 and NR_SEC seconds.
  41                 get_random
  42                 sleep $?
  43         else
  44                 sleep $NR_SEC
  45         fi
  46         killall -q -9 $REPO_RELAYD_BIN >/dev/null 2>&1
  47 }
  48
  49 # Do we have to run in an infinite loop ?
  50 if [ -n "$1" ]; then
  51         KILL_LOOP=1
  52 fi
  53
  54 # Should it be a random kill or not ?
  55 if [ -n "$2" ]; then
  56         RANDOM_KILL=1
  57 fi
  58
  59 # MUST set TESTDIR before this point.
  60
  61 if [ $KILL_LOOP -eq 0 ]; then
  62         kill_relayd
  63 else
  64         while :; do
  65                 kill_relayd
  66         done
  67 fi