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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 {Area, Sorting} from '../../common/state';
18import {globals} from '../../frontend/globals';
19import {
20  ASYNC_SLICE_TRACK_KIND,
21  Config as AsyncSliceConfig,
22} from '../../tracks/async_slices';
23import {
24  Config as SliceConfig,
25  SLICE_TRACK_KIND,
26} from '../../tracks/chrome_slices';
27
28import {AggregationController} from './aggregation_controller';
29
30export function getSelectedTrackIds(area: Area): number[] {
31  const selectedTrackIds = [];
32  for (const trackId of area.tracks) {
33    const track = globals.state.tracks[trackId];
34    // Track will be undefined for track groups.
35    if (track !== undefined) {
36      if (track.kind === SLICE_TRACK_KIND) {
37        selectedTrackIds.push((track.config as SliceConfig).trackId);
38      }
39      if (track.kind === ASYNC_SLICE_TRACK_KIND) {
40        const config = track.config as AsyncSliceConfig;
41        for (const id of config.trackIds) {
42          selectedTrackIds.push(id);
43        }
44      }
45    }
46  }
47  return selectedTrackIds;
48}
49
50export class SliceAggregationController extends AggregationController {
51  async createAggregateView(engine: Engine, area: Area) {
52    await engine.query(`drop view if exists ${this.kind};`);
53
54    const selectedTrackIds = getSelectedTrackIds(area);
55
56    if (selectedTrackIds.length === 0) return false;
57
58    const query = `create view ${this.kind} as
59        SELECT
60        name,
61        sum(dur) AS total_dur,
62        sum(dur)/count(1) as avg_dur,
63        count(1) as occurrences
64        FROM slices
65        WHERE track_id IN (${selectedTrackIds}) AND
66        ts + dur > ${area.start} AND
67        ts < ${area.end} group by name`;
68
69    await engine.query(query);
70    return true;
71  }
72
73  getTabName() {
74    return 'Slices';
75  }
76
77  async getExtra() {}
78
79  getDefaultSorting(): Sorting {
80    return {column: 'total_dur', direction: 'DESC'};
81  }
82
83  getColumnDefinitions(): ColumnDef[] {
84    return [
85      {
86        title: 'Name',
87        kind: 'STRING',
88        columnConstructor: Uint32Array,
89        columnId: 'name',
90      },
91      {
92        title: 'Wall duration (ms)',
93        kind: 'TIMESTAMP_NS',
94        columnConstructor: Float64Array,
95        columnId: 'total_dur',
96        sum: true,
97      },
98      {
99        title: 'Avg Wall duration (ms)',
100        kind: 'TIMESTAMP_NS',
101        columnConstructor: Float64Array,
102        columnId: 'avg_dur',
103      },
104      {
105        title: 'Occurrences',
106        kind: 'NUMBER',
107        columnConstructor: Uint32Array,
108        columnId: 'occurrences',
109        sum: true,
110      },
111    ];
112  }
113}
114