tools/testing/selftests/ftrace/test.d/instances/instance.tc

   1 #!/bin/sh
   2 # SPDX-License-Identifier: GPL-2.0
   3 # description: Test creation and deletion of trace instances
   4 # requires: instances
   5
   6 fail() { # mesg
   7     rmdir x y z 2>/dev/null
   8     echo $1
   9     set -e
  10     exit_fail
  11 }
  12
  13 cd instances
  14
  15 # we don't want to fail on error
  16 set +e
  17
  18 mkdir x
  19 rmdir x
  20 result=$?
  21
  22 if [ $result -ne 0 ]; then
  23     echo "instance rmdir not supported"
  24     exit_unsupported
  25 fi
  26
  27 instance_slam() {
  28     while :; do
  29         mkdir x
  30         mkdir y
  31         mkdir z
  32         rmdir x
  33         rmdir y
  34         rmdir z
  35     done 2>/dev/null
  36 }
  37
  38 instance_slam &
  39 p1=$!
  40 echo $p1
  41
  42 instance_slam &
  43 p2=$!
  44 echo $p2
  45
  46 instance_slam &
  47 p3=$!
  48 echo $p3
  49
  50 instance_slam &
  51 p4=$!
  52 echo $p4
  53
  54 instance_slam &
  55 p5=$!
  56 echo $p5
  57
  58 ls -lR >/dev/null
  59 sleep 1
  60
  61 kill -1 $p1
  62 kill -1 $p2
  63 kill -1 $p3
  64 kill -1 $p4
  65 kill -1 $p5
  66
  67 echo "Wait for processes to finish"
  68 wait $p1 $p2 $p3 $p4 $p5
  69 echo "all processes finished, wait for cleanup"
  70
  71 mkdir x y z
  72 ls x y z
  73 rmdir x y z
  74 for d in x y z; do
  75         if [ -d $d ]; then
  76                 fail "instance $d still exists"
  77         fi
  78 done
  79
  80 set -e
  81
  82 exit 0