#!/bin/bash
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# Copyright (c) International Business Machines Corp., 2008
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# Author: Matt Helsley <matthltc@us.ibm.com>
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#
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# This library is free software; you can redistribute it and/or
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# modify it under the terms of the GNU Lesser General Public
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# License as published by the Free Software Foundation; either
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# version 2.1 of the License, or (at your option) any later version.
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#
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# This library is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public
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# License along with this library; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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#
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#
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# Try to write "FREEZING" into the freezer.state while freezer.state ==
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# "THAWED". This should result in an error (EIO) and should not change
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# the freezer state.
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#
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. "${CGROUPS_TESTROOT}/libcgroup_freezer"
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SETS_DEFAULTS="${TCID=write_freezing.sh} ${TST_COUNT=1} ${TST_TOTAL=1}"
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declare -r TCID
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declare -r TST_COUNT
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declare -r TST_TOTAL
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export TCID TST_COUNT TST_TOTAL
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running_cgroup_test
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mount_freezer && {
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make_sample_cgroup && {
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while /bin/true ; do
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trap 'break' ERR
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assert_cgroup_freezer_state "THAWED" \
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"ERROR: cgroup freezer started in non-THAWED state"
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"${CG_FILE_WRITE}" "FREEZING" > freezer.state 2>&1 | \
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grep -E 'Input/output error$'
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assert_cgroup_freezer_state "THAWED" "ERROR: writing FREEZING to freezer.state should not change freezer state (expected IO error)"
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result=$FINISHED
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break
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done
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trap '' ERR
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cleanup_cgroup_test
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tst_resm TINFO " Cleaning up $0"
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rm_sample_cgroup ; }
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umount_freezer ; }
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# Failsafe cleanup
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cleanup_freezer || /bin/true
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exit $result
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