blob: 4c05cf468b2224cc785873539f3b8e39c8441b6a [file] [log] [blame]
#
# Copyright (C) 2012 The Android Open Source Project
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
description "System software update service"
author "chromium-os-dev@chromium.org"
# N.B. The chromeos-factoryinstall ebuild edits the 'start on' line so as
# to disable update_engine in factory images. Do not change this without
# also updating that reference.
start on starting system-services
stop on stopping system-services
respawn
expect fork
# Runs the daemon at low/idle IO priority so that updates don't
# impact system responsiveness.
exec ionice -c3 update_engine
# Put update_engine process in its own cgroup.
# Default cpu.shares is 1024.
post-start script
cgroup_dir="/sys/fs/cgroup/cpu/${UPSTART_JOB}"
mkdir -p "${cgroup_dir}"
echo $(status | cut -f 4 -d ' ') > "${cgroup_dir}/tasks"
end script