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#@SHELL@
# Copyright (c) 2012 Alexander Vershilov <qnikst@gentoo.org>
# Released under the 2-clause BSD license.
cgroup_find_path()
{
local OIFS n name dir result
[ -n "$1" ] || return 0
OIFS="$IFS"
IFS=":"
while read n name dir; do
[ "$name" = "$1" ] && result="$dir"
done < /proc/1/cgroup
IFS="$OIFS"
echo $result
}
# prepare values to be attached inside cgroups
cgroup_prepare()
{
local h=$(cgroup_find_path "$1")
cgroup="/sys/fs/cgroup/${1}${h}openrc_${RC_SVCNAME}"
[ -d ${cgroup} ] || mkdir -p ${cgroup}
return 0
}
cgroup_set_value()
{
[ -f "$cgroup/${1}" -a -n "$2" ] && echo $2 > "${cgroup}/${1}"
return 0
}
cgroup_add_process()
{
[ -f "${cgroup}"/tasks ] && echo 0 > "${cgroup}"/tasks
return 0
}
cgroup_set_limits()
{
openrc_cgroup=/sys/fs/cgroup/openrc
if [ -d ${openrc_cgroup} ]; then
cgroup=${openrc_cgroup}/${RC_SVCNAME}
mkdir -p ${cgroup}
[ -f "${cgroup}"/tasks ] && echo 0 > "${cgroup}"/tasks
fi
if [ -d /sys/fs/cgroup/cpu ]; then
local share
share=${rc_cgroup_cpu_shares:-$RC_CGROUP_CPU_SHARES}
if [ -n "$share" ]; then
cgroup_prepare "cpu"
cgroup_set_value "cpu.shares" $share
cgroup_add_process
fi
fi
return 0
}
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