#!/bin/bash # Copyright (c) International Business Machines Corp., 2008 # Author: Matt Helsley # # This library is free software; you can redistribute it and/or # modify it under the terms of the GNU Lesser General Public # License as published by the Free Software Foundation; either # version 2.1 of the License, or (at your option) any later version. # # This library is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public # License along with this library; if not, write to the Free Software # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA # # # This bash script tests freezer code by starting a long sleep process. # The sleep process is stopped and then frozen. We then thaw the process # after it normally would have exited. # We expect the process to still be around as we cleanup the test. # . "${CGROUPS_TESTROOT}/libcgroup_freezer" SETS_DEFAULTS="${TCID=stop_freeze_sleep_thaw_cont.sh} ${TST_COUNT=1} ${TST_TOTAL=1}" declare -r TCID declare -r TST_COUNT declare -r TST_TOTAL export TCID TST_COUNT TST_TOTAL running_cgroup_test mount_freezer && { make_sample_cgroup && { start_sample_proc && { while /bin/true ; do trap 'break' ERR assert_cgroup_freezer_state "THAWED" \ "ERROR: cgroup freezer started in non-THAWED state" add_sample_proc_to_cgroup kill -SIGSTOP $sample_proc # TODO: reliably fix race between signal and assertion? /bin/sleep 1 assert_sample_proc_stopped issue_freeze_cmd wait_until_frozen assert_sample_proc_is_frozen echo -n "INFO: Waiting until sleep command should have finished ($sample_proc) ... " /bin/sleep $(($sample_sleep * 2)) echo "done." issue_thaw_cmd wait_until_thawed assert_sample_proc_exists assert_sample_proc_not_frozen assert_sample_proc_stopped kill -SIGCONT $sample_proc # TODO: reliably fix race between signal and assertion? /bin/sleep 1 assert_sample_proc_does_not_exist # We don't need to kill the sample process. sample_proc="" result=$FINISHED break done trap '' ERR cleanup_cgroup_test tst_resm TINFO " Cleaning up $0" # We may not need to kill the sample process. kill_sample_proc ; } rm_sample_cgroup ; } umount_freezer ; } # Failsafe cleanup cleanup_freezer || /bin/true exit $result