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