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1// Copyright (C) 2020 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
15import {ColumnDef} from '../../common/aggregation_data';
16import {Engine} from '../../common/engine';
17import {Sorting, TimestampedAreaSelection} from '../../common/state';
18import {toNs} from '../../common/time';
19import {
20  Config,
21  THREAD_STATE_TRACK_KIND
22} from '../../tracks/thread_state/common';
23import {globals} from '../globals';
24
25import {AggregationController} from './aggregation_controller';
26
27export class ThreadAggregationController extends AggregationController {
28  async createAggregateView(
29      engine: Engine, selectedArea: TimestampedAreaSelection) {
30    await engine.query(`drop view if exists ${this.kind};`);
31    const area = selectedArea.area;
32    if (area === undefined) return false;
33
34    // TODO(taylori): Thread state tracks should have a real track id in the
35    // trace processor.
36    const utids = [];
37    for (const trackId of area.tracks) {
38      const track = globals.state.tracks[trackId];
39      // Track will be undefined for track groups.
40      if (track !== undefined && track.kind === THREAD_STATE_TRACK_KIND) {
41        utids.push((track.config as Config).utid);
42      }
43    }
44    if (utids.length === 0) return false;
45
46    const query = `create view ${this.kind} as
47      SELECT process.name as process_name, pid, thread.name as thread_name, tid,
48      state,
49      sum(dur) AS total_dur,
50      sum(dur)/count(1) as avg_dur,
51      count(1) as occurrences
52      FROM process
53      JOIN thread USING(upid)
54      JOIN thread_state USING(utid)
55      WHERE utid IN (${utids}) AND
56      thread_state.ts + thread_state.dur > ${toNs(area.startSec)} AND
57      thread_state.ts < ${toNs(area.endSec)}
58      GROUP BY utid, state`;
59
60    await engine.query(query);
61    return true;
62  }
63
64  getColumnDefinitions(): ColumnDef[] {
65    return [
66      {
67        title: 'Process',
68        kind: 'STRING',
69        columnConstructor: Uint16Array,
70        columnId: 'process_name',
71      },
72      {
73        title: 'PID',
74        kind: 'NUMBER',
75        columnConstructor: Uint16Array,
76        columnId: 'pid'
77      },
78      {
79        title: 'Thread',
80        kind: 'STRING',
81        columnConstructor: Uint16Array,
82        columnId: 'thread_name'
83      },
84      {
85        title: 'TID',
86        kind: 'NUMBER',
87        columnConstructor: Uint16Array,
88        columnId: 'tid'
89      },
90      {
91        title: 'State',
92        kind: 'STATE',
93        columnConstructor: Uint16Array,
94        columnId: 'state'
95      },
96      {
97        title: 'Wall duration (ms)',
98        kind: 'TIMESTAMP_NS',
99        columnConstructor: Float64Array,
100        columnId: 'total_dur'
101      },
102      {
103        title: 'Avg Wall duration (ms)',
104        kind: 'TIMESTAMP_NS',
105        columnConstructor: Float64Array,
106        columnId: 'avg_dur'
107      },
108      {
109        title: 'Occurrences',
110        kind: 'NUMBER',
111        columnConstructor: Uint16Array,
112        columnId: 'occurrences'
113      }
114    ];
115  }
116
117  getTabName() {
118    return 'Thread States';
119  }
120
121  getDefaultSorting(): Sorting {
122    return {column: 'total_dur', direction: 'DESC'};
123  }
124}
125