| # |
| # 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 |
| # The default is 10 failures every 5 seconds, but even if we crash early, it is |
| # hard to catch that. So here we set the crash rate as 10 failures every 20 |
| # seconds which will include the default and more. |
| respawn |
| respawn limit 10 20 |
| |
| 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 |
