f226350fcb
PR-URL: https://github.com/nodejs/node/pull/47251 Reviewed-By: Yagiz Nizipli <yagiz@nizipli.com> Reviewed-By: Jiawen Geng <technicalcute@gmail.com> Reviewed-By: Rafael Gonzaga <rafael.nunu@hotmail.com> Reviewed-By: Richard Lau <rlau@redhat.com>
63 lines
1.6 KiB
JavaScript
63 lines
1.6 KiB
JavaScript
// Copyright 2021 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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import {Profile} from '../../profile.mjs'
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import {LogEntry} from './log.mjs';
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export class TickLogEntry extends LogEntry {
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constructor(time, vmState, processedStack) {
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super(TickLogEntry.extractType(vmState, processedStack), time);
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/** @type {string} */
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this.state = vmState;
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/** @type {CodeEntry[]} */
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this.stack = processedStack;
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/** @type {number} */
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this._endTime = time;
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}
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end(time) {
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if (this.isInitialized) throw new Error('Invalid timer change');
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this._endTime = time;
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}
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get isInitialized() {
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return this._endTime !== this._time;
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}
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get startTime() {
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return this._time;
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}
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get endTime() {
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return this._endTime;
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}
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get duration() {
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return this._endTime - this._time;
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}
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static extractType(vmState, processedStack) {
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if (processedStack.length == 0 || vmState == Profile.VMState.IDLE) {
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return 'Idle';
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}
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const topOfStack = processedStack[0];
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if (typeof topOfStack === 'number' || typeof topOfStack === 'bigint') {
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// TODO(cbruni): Handle VmStack and native ticks better.
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return 'Other';
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}
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if (vmState != Profile.VMState.JS) {
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topOfStack.vmState = vmState;
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}
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return this.extractCodeEntryType(topOfStack);
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}
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static extractCodeEntryType(entry) {
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if (entry?.state !== undefined) {
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return 'JS ' + Profile.getKindFromState(entry.state);
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}
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if (entry?.vmState) return Profile.vmStateString(entry.vmState);
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return 'Other';
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}
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}
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