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// Copyright (C) 2023 The Android Open Source Project
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
import m from 'mithril';
import {FtraceExplorer, FtraceExplorerCache} from './ftrace_explorer';
import {
EngineProxy,
Plugin,
PluginContextTrace,
PluginDescriptor,
} from '../../public';
import {NUM} from '../../trace_processor/query_result';
import {Trash} from '../../base/disposable';
import {FtraceFilter, FtracePluginState} from './common';
import {FtraceRawTrack} from './ftrace_track';
const VERSION = 1;
const DEFAULT_STATE: FtracePluginState = {
version: VERSION,
filter: {
excludeList: [],
},
};
class FtraceRawPlugin implements Plugin {
private trash = new Trash();
async onTraceLoad(ctx: PluginContextTrace): Promise<void> {
const store = ctx.mountStore<FtracePluginState>((init: unknown) => {
if (
typeof init === 'object' &&
init !== null &&
'version' in init &&
init.version === VERSION
) {
return init as {} as FtracePluginState;
} else {
return DEFAULT_STATE;
}
});
this.trash.add(store);
const filterStore = store.createSubStore(
['filter'],
(x) => x as FtraceFilter,
);
this.trash.add(filterStore);
const cpus = await this.lookupCpuCores(ctx.engine);
for (const cpuNum of cpus) {
const uri = `perfetto.FtraceRaw#cpu${cpuNum}`;
ctx.registerStaticTrack({
uri,
groupName: 'Ftrace Events',
displayName: `Ftrace Track for CPU ${cpuNum}`,
cpu: cpuNum,
trackFactory: () => {
return new FtraceRawTrack(ctx.engine, cpuNum, filterStore);
},
});
}
const cache: FtraceExplorerCache = {
state: 'blank',
counters: [],
};
const ftraceTabUri = 'perfetto.FtraceRaw#FtraceEventsTab';
ctx.registerTab({
uri: ftraceTabUri,
isEphemeral: false,
content: {
render: () =>
m(FtraceExplorer, {
filterStore,
cache,
engine: ctx.engine,
}),
getTitle: () => 'Ftrace Events',
},
});
ctx.registerCommand({
id: 'perfetto.FtraceRaw#ShowFtraceTab',
name: 'Show ftrace tab',
callback: () => {
ctx.tabs.showTab(ftraceTabUri);
},
});
}
async onTraceUnload(): Promise<void> {
this.trash.dispose();
}
private async lookupCpuCores(engine: EngineProxy): Promise<number[]> {
const query = 'select distinct cpu from ftrace_event';
const result = await engine.query(query);
const it = result.iter({cpu: NUM});
const cpuCores: number[] = [];
for (; it.valid(); it.next()) {
cpuCores.push(it.cpu);
}
return cpuCores;
}
}
export const plugin: PluginDescriptor = {
pluginId: 'perfetto.FtraceRaw',
plugin: FtraceRawPlugin,
};
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