1#!/bin/bash 2 3# Copyright (c) International Business Machines Corp., 2008 4# Author: Matt Helsley <matthltc@us.ibm.com> 5# 6# This library is free software; you can redistribute it and/or 7# modify it under the terms of the GNU Lesser General Public 8# License as published by the Free Software Foundation; either 9# version 2.1 of the License, or (at your option) any later version. 10# 11# This library is distributed in the hope that it will be useful, 12# but WITHOUT ANY WARRANTY; without even the implied warranty of 13# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14# Lesser General Public License for more details. 15# 16# You should have received a copy of the GNU Lesser General Public 17# License along with this library; if not, write to the Free Software 18# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 19# 20 21# 22# This bash script tests freezer code by starting a long sleep process. 23# The sleep process is stopped and then frozen. We then thaw the process 24# after it normally would have exited. 25# We expect the process to still be around as we cleanup the test. 26# 27 28. "${CGROUPS_TESTROOT}/libcgroup_freezer" 29SETS_DEFAULTS="${TCID=stop_freeze_sleep_thaw_cont.sh} ${TST_COUNT=1} ${TST_TOTAL=1}" 30declare -r TCID 31declare -r TST_COUNT 32declare -r TST_TOTAL 33export TCID TST_COUNT TST_TOTAL 34 35running_cgroup_test 36mount_freezer && { 37make_sample_cgroup && { 38start_sample_proc && { 39 40while /bin/true ; do 41 trap 'break' ERR 42 assert_cgroup_freezer_state "THAWED" \ 43 "ERROR: cgroup freezer started in non-THAWED state" 44 add_sample_proc_to_cgroup 45 46 kill -SIGSTOP $sample_proc 47 # TODO: reliably fix race between signal and assertion? 48 /bin/sleep 1 49 assert_sample_proc_stopped 50 51 issue_freeze_cmd 52 wait_until_frozen 53 assert_sample_proc_is_frozen 54 55 echo -n "INFO: Waiting until sleep command should have finished ($sample_proc) ... " 56 /bin/sleep $(($sample_sleep * 2)) 57 echo "done." 58 59 issue_thaw_cmd 60 wait_until_thawed 61 assert_sample_proc_exists 62 assert_sample_proc_not_frozen 63 assert_sample_proc_stopped 64 65 kill -SIGCONT $sample_proc 66 # TODO: reliably fix race between signal and assertion? 67 /bin/sleep 1 68 assert_sample_proc_does_not_exist 69 70 # We don't need to kill the sample process. 71 sample_proc="" 72 result=$FINISHED 73 break 74done 75trap '' ERR 76cleanup_cgroup_test 77tst_resm TINFO " Cleaning up $0" 78 79# We may not need to kill the sample process. 80kill_sample_proc ; } 81rm_sample_cgroup ; } 82umount_freezer ; } 83 84# Failsafe cleanup 85cleanup_freezer || /bin/true 86 87exit $result 88