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1// Copyright (C) 2019 The Android Open Source Project
2//
3// Licensed under the Apache License, Version 2.0 (the "License");
4// you may not use this file except in compliance with the License.
5// You may obtain a copy of the License at
6//
7//      http://www.apache.org/licenses/LICENSE-2.0
8//
9// Unless required by applicable law or agreed to in writing, software
10// distributed under the License is distributed on an "AS IS" BASIS,
11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12// See the License for the specific language governing permissions and
13// limitations under the License.
14
15const states: {[key: string]: string} = {
16  'R': 'Runnable',
17  'S': 'Sleeping',
18  'D': 'Uninterruptible Sleep',
19  'T': 'Stopped',
20  't': 'Traced',
21  'X': 'Exit (Dead)',
22  'Z': 'Exit (Zombie)',
23  'x': 'Task Dead',
24  'I': 'Idle',
25  'K': 'Wake Kill',
26  'W': 'Waking',
27  'P': 'Parked',
28  'N': 'No Load',
29  '+': '(Preempted)',
30};
31
32export function translateState(
33  state: string | undefined | null,
34  ioWait: boolean | undefined = undefined,
35) {
36  if (state === undefined) return '';
37
38  // Self describing states
39  switch (state) {
40    case 'Running':
41    case 'Initialized':
42    case 'Deferred Ready':
43    case 'Transition':
44    case 'Stand By':
45    case 'Waiting':
46      return state;
47  }
48
49  if (state === null) {
50    return 'Unknown';
51  }
52  let result = states[state[0]];
53  if (ioWait === true) {
54    result += ' (IO)';
55  } else if (ioWait === false) {
56    result += ' (non-IO)';
57  }
58  for (let i = 1; i < state.length; i++) {
59    result += state[i] === '+' ? ' ' : ' + ';
60    result += states[state[i]];
61  }
62  // state is some string we don't know how to translate.
63  if (result === undefined) return state;
64
65  return result;
66}
67