Andrew Zambazos
115 lines
4.0 KiB
JavaScript
115 lines
4.0 KiB
JavaScript
/*
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* Copyright (C) 2019 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*/
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WI.CPUTimelineRecord = class CPUTimelineRecord extends WI.TimelineRecord
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{
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constructor({timestamp, usage, threads})
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{
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super(WI.TimelineRecord.Type.CPU, timestamp - CPUTimelineRecord.samplingRatePerSecond, timestamp);
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console.assert(typeof timestamp === "number");
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console.assert(typeof usage === "number");
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console.assert(usage >= 0);
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console.assert(threads === undefined || Array.isArray(threads));
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this._timestamp = timestamp;
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this._usage = usage;
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this._threads = threads || [];
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this._mainThreadUsage = 0;
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this._webkitThreadUsage = 0;
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this._workerThreadUsage = 0;
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this._unknownThreadUsage = 0;
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this._workersData = null;
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for (let thread of this._threads) {
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if (thread.type === InspectorBackend.Enum.CPUProfiler.ThreadInfoType.Main) {
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console.assert(!this._mainThreadUsage, "There should only be one main thread.");
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this._mainThreadUsage += thread.usage;
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continue;
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}
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if (thread.type === InspectorBackend.Enum.CPUProfiler.ThreadInfoType.WebKit) {
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if (thread.targetId) {
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if (!this._workersData)
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this._workersData = [];
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this._workersData.push(thread);
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this._workerThreadUsage += thread.usage;
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continue;
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}
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this._webkitThreadUsage += thread.usage;
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continue;
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}
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this._unknownThreadUsage += thread.usage;
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}
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}
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// Static
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static get samplingRatePerSecond()
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{
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// 500ms. This matches the ResourceUsageThread sampling frequency in the backend.
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return 0.5;
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}
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// Import / Export
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static async fromJSON(json)
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{
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return new WI.CPUTimelineRecord(json);
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}
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toJSON()
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{
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return {
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type: this.type,
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timestamp: this._timestamp,
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usage: this._usage,
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threads: this._threads,
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};
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}
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// Public
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get timestamp() { return this._timestamp; }
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get usage() { return this._usage; }
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get unadjustedStartTime() { return this._timestamp; }
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get mainThreadUsage() { return this._mainThreadUsage; }
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get webkitThreadUsage() { return this._webkitThreadUsage; }
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get workerThreadUsage() { return this._workerThreadUsage; }
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get unknownThreadUsage() { return this._unknownThreadUsage; }
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get workersData() { return this._workersData; }
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adjustStartTime(startTime)
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{
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console.assert(startTime < this._endTime);
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this._startTime = startTime;
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}
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};
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