1# 2# Copyright (C) 2012 The Android Open Source Project 3# 4# Licensed under the Apache License, Version 2.0 (the "License"); 5# you may not use this file except in compliance with the License. 6# You may obtain a copy of the License at 7# 8# http://www.apache.org/licenses/LICENSE-2.0 9# 10# Unless required by applicable law or agreed to in writing, software 11# distributed under the License is distributed on an "AS IS" BASIS, 12# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13# See the License for the specific language governing permissions and 14# limitations under the License. 15# 16 17description "System software update service" 18author "chromium-os-dev@chromium.org" 19 20# N.B. The chromeos-factoryinstall ebuild edits the 'start on' line so as 21# to disable update_engine in factory images. Do not change this without 22# also updating that reference. 23start on starting system-services 24stop on stopping system-services 25# The default is 10 failures every 5 seconds, but even if we crash early, it is 26# hard to catch that. So here we set the crash rate as 10 failures every 20 27# seconds which will include the default and more. 28respawn 29respawn limit 10 20 30 31expect fork 32 33# Runs the daemon at low/idle IO priority so that updates don't 34# impact system responsiveness. 35exec ionice -c3 update_engine 36 37# Put update_engine process in its own cgroup. 38# Default cpu.shares is 1024. 39post-start script 40 pid=$(status | cut -f 4 -d ' ') 41 42 cgroup_cpu_dir="/sys/fs/cgroup/cpu/${UPSTART_JOB}" 43 mkdir -p "${cgroup_cpu_dir}" 44 echo ${pid} > "${cgroup_cpu_dir}/tasks" 45 46 # Assigns net_cls handle 1:1 to packets generated from update_engine. For 47 # routing and tagging purposes, that value will be redefined in 48 # patchpanel/routing_service.h . 49 cgroup_net_cls_dir="/sys/fs/cgroup/net_cls/${UPSTART_JOB}" 50 mkdir -p "${cgroup_net_cls_dir}" 51 echo ${pid} > "${cgroup_net_cls_dir}/tasks" 52 echo "0x10001" > "${cgroup_net_cls_dir}/net_cls.classid" 53end script 54