1@startuml
2' Copyright (C) 2018 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' Compile with PlantUML:
17' http://www.plantuml.com/plantuml/uml/
18
19
20'hide footbox
21
22participant "system_server" as ss
23participant iorapd
24
25autonumber 1 0 "Request [00]:"
26
27ss -\ iorapd : onSomeEvent
28activate iorapd
29note right of iorapd
30  start processing event
31end note
32
33loop 1 or more times
34iorapd -\ ss : onProgress
35
36autonumber stop
37iorapd -> iorapd : workload in progress
38autonumber resume
39
40end
41
42' some time later...
43... ...
44
45note right of iorapd
46  finish processing event
47end note
48
49
50iorapd -\ ss : onComplete
51
52deactivate iorapd
53@enduml
54