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#!/bin/bash
#
# PM-QA validation test suite for the power management on ARM
#
# Copyright (C) 2011, Linaro Limited.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
#
# Contributors:
# Daniel Lezcano <daniel.lezcano@linaro.org> (IBM Corporation)
# - initial API and implementation
#
# URL : https://wiki.linaro.org/WorkingGroups/PowerManagement/Doc/QA/Scripts#cpuhotplug_07
source ../include/functions.sh
TMPFILE=cpuhotplug_07.tmp
check_notification() {
local cpu=$1
local cpuid=${cpu:3}
local pid=
local ret=
if [ "$cpu" == "cpu0" ]; then
return 0
fi
# damn ! udevadm is buffering the output, we have to use a temp file
# to retrieve the output
rm -f $TMPFILE
udevadm monitor --kernel --subsystem-match=cpu > $TMPFILE &
pid=$!
set_offline $cpu
set_online $cpu
# let the time the notification to reach userspace
# and buffered in the file
sleep 1
kill $pid
grep "offline" $TMPFILE | grep -q "/devices/system/cpu/$cpu"
ret=$?
check "offline event was received" "test $ret -eq 0"
grep "online" $TMPFILE | grep -q "/devices/system/cpu/$cpu"
ret=$?
check "online event was received" "test $ret -eq 0"
rm -f $TMPFILE
}
for_each_cpu check_notification
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