| /* |
| * Copyright (C) 2013, 2016 Apple Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' |
| * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, |
| * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS |
| * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF |
| * THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| WI.TimelineManager = class TimelineManager extends WI.Object |
| { |
| constructor() |
| { |
| super(); |
| |
| WI.Frame.addEventListener(WI.Frame.Event.ProvisionalLoadStarted, this._provisionalLoadStarted, this); |
| WI.Frame.addEventListener(WI.Frame.Event.MainResourceDidChange, this._mainResourceDidChange, this); |
| WI.Frame.addEventListener(WI.Frame.Event.ResourceWasAdded, this._resourceWasAdded, this); |
| WI.Target.addEventListener(WI.Target.Event.ResourceAdded, this._resourceWasAdded, this); |
| |
| WI.heapManager.addEventListener(WI.HeapManager.Event.GarbageCollected, this._garbageCollected, this); |
| WI.memoryManager.addEventListener(WI.MemoryManager.Event.MemoryPressure, this._memoryPressure, this); |
| |
| this._enabledTimelineTypesSetting = new WI.Setting("enabled-instrument-types", WI.TimelineManager.defaultTimelineTypes()); |
| this._updateAutoCaptureInstruments(); |
| |
| this._persistentNetworkTimeline = new WI.NetworkTimeline; |
| |
| this._isCapturing = false; |
| this._initiatedByBackendStart = false; |
| this._initiatedByBackendStop = false; |
| this._waitingForCapturingStartedEvent = false; |
| this._isCapturingPageReload = false; |
| this._autoCaptureOnPageLoad = false; |
| this._mainResourceForAutoCapturing = null; |
| this._shouldSetAutoCapturingMainResource = false; |
| this._boundStopCapturing = this.stopCapturing.bind(this); |
| |
| this._webTimelineScriptRecordsExpectingScriptProfilerEvents = null; |
| this._scriptProfilerRecords = null; |
| |
| this._stopCapturingTimeout = undefined; |
| this._deadTimeTimeout = undefined; |
| this._lastDeadTimeTickle = 0; |
| |
| this.reset(); |
| } |
| |
| // Static |
| |
| static defaultTimelineTypes() |
| { |
| if (WI.debuggableType === WI.DebuggableType.JavaScript) { |
| let defaultTypes = [WI.TimelineRecord.Type.Script]; |
| if (WI.HeapAllocationsInstrument.supported()) |
| defaultTypes.push(WI.TimelineRecord.Type.HeapAllocations); |
| return defaultTypes; |
| } |
| |
| let defaultTypes = [ |
| WI.TimelineRecord.Type.Network, |
| WI.TimelineRecord.Type.Layout, |
| WI.TimelineRecord.Type.Script, |
| ]; |
| |
| if (WI.FPSInstrument.supported()) |
| defaultTypes.push(WI.TimelineRecord.Type.RenderingFrame); |
| |
| return defaultTypes; |
| } |
| |
| static availableTimelineTypes() |
| { |
| let types = WI.TimelineManager.defaultTimelineTypes(); |
| if (WI.debuggableType === WI.DebuggableType.JavaScript) |
| return types; |
| |
| if (WI.MemoryInstrument.supported()) |
| types.push(WI.TimelineRecord.Type.Memory); |
| |
| if (WI.HeapAllocationsInstrument.supported()) |
| types.push(WI.TimelineRecord.Type.HeapAllocations); |
| |
| return types; |
| } |
| |
| // Public |
| |
| reset() |
| { |
| if (this._isCapturing) |
| this.stopCapturing(); |
| |
| this._recordings = []; |
| this._activeRecording = null; |
| this._nextRecordingIdentifier = 1; |
| |
| this._loadNewRecording(); |
| } |
| |
| // The current recording that new timeline records will be appended to, if any. |
| get activeRecording() |
| { |
| console.assert(this._activeRecording || !this._isCapturing); |
| return this._activeRecording; |
| } |
| |
| get persistentNetworkTimeline() |
| { |
| return this._persistentNetworkTimeline; |
| } |
| |
| get recordings() |
| { |
| return this._recordings.slice(); |
| } |
| |
| get autoCaptureOnPageLoad() |
| { |
| return this._autoCaptureOnPageLoad; |
| } |
| |
| set autoCaptureOnPageLoad(autoCapture) |
| { |
| autoCapture = !!autoCapture; |
| |
| if (this._autoCaptureOnPageLoad === autoCapture) |
| return; |
| |
| this._autoCaptureOnPageLoad = autoCapture; |
| |
| if (window.TimelineAgent && TimelineAgent.setAutoCaptureEnabled) |
| TimelineAgent.setAutoCaptureEnabled(this._autoCaptureOnPageLoad); |
| } |
| |
| get enabledTimelineTypes() |
| { |
| let availableTimelineTypes = WI.TimelineManager.availableTimelineTypes(); |
| return this._enabledTimelineTypesSetting.value.filter((type) => availableTimelineTypes.includes(type)); |
| } |
| |
| set enabledTimelineTypes(x) |
| { |
| this._enabledTimelineTypesSetting.value = x || []; |
| |
| this._updateAutoCaptureInstruments(); |
| } |
| |
| isCapturing() |
| { |
| return this._isCapturing; |
| } |
| |
| isCapturingPageReload() |
| { |
| return this._isCapturingPageReload; |
| } |
| |
| startCapturing(shouldCreateRecording) |
| { |
| console.assert(!this._isCapturing, "TimelineManager is already capturing."); |
| |
| if (!this._activeRecording || shouldCreateRecording) |
| this._loadNewRecording(); |
| |
| this._waitingForCapturingStartedEvent = true; |
| |
| this.dispatchEventToListeners(WI.TimelineManager.Event.CapturingWillStart); |
| |
| this._activeRecording.start(this._initiatedByBackendStart); |
| } |
| |
| stopCapturing() |
| { |
| console.assert(this._isCapturing, "TimelineManager is not capturing."); |
| |
| this._activeRecording.stop(this._initiatedByBackendStop); |
| |
| // NOTE: Always stop immediately instead of waiting for a Timeline.recordingStopped event. |
| // This way the UI feels as responsive to a stop as possible. |
| // FIXME: <https://webkit.org/b/152904> Web Inspector: Timeline UI should keep up with processing all incoming records |
| this.capturingStopped(); |
| } |
| |
| unloadRecording() |
| { |
| if (!this._activeRecording) |
| return; |
| |
| if (this._isCapturing) |
| this.stopCapturing(); |
| |
| this._activeRecording.unloaded(); |
| this._activeRecording = null; |
| } |
| |
| computeElapsedTime(timestamp) |
| { |
| if (!this._activeRecording) |
| return 0; |
| |
| return this._activeRecording.computeElapsedTime(timestamp); |
| } |
| |
| scriptProfilerIsTracking() |
| { |
| return this._scriptProfilerRecords !== null; |
| } |
| |
| // Protected |
| |
| capturingStarted(startTime) |
| { |
| // Called from WI.TimelineObserver. |
| |
| if (this._isCapturing) |
| return; |
| |
| this._waitingForCapturingStartedEvent = false; |
| this._isCapturing = true; |
| |
| this._lastDeadTimeTickle = 0; |
| |
| if (startTime) |
| this.activeRecording.initializeTimeBoundsIfNecessary(startTime); |
| |
| this._webTimelineScriptRecordsExpectingScriptProfilerEvents = []; |
| |
| this.dispatchEventToListeners(WI.TimelineManager.Event.CapturingStarted, {startTime}); |
| } |
| |
| capturingStopped(endTime) |
| { |
| // Called from WI.TimelineObserver. |
| |
| if (!this._isCapturing) |
| return; |
| |
| if (this._stopCapturingTimeout) { |
| clearTimeout(this._stopCapturingTimeout); |
| this._stopCapturingTimeout = undefined; |
| } |
| |
| if (this._deadTimeTimeout) { |
| clearTimeout(this._deadTimeTimeout); |
| this._deadTimeTimeout = undefined; |
| } |
| |
| this._isCapturing = false; |
| this._isCapturingPageReload = false; |
| this._shouldSetAutoCapturingMainResource = false; |
| this._mainResourceForAutoCapturing = null; |
| this._initiatedByBackendStart = false; |
| this._initiatedByBackendStop = false; |
| |
| this.dispatchEventToListeners(WI.TimelineManager.Event.CapturingStopped, {endTime}); |
| } |
| |
| autoCaptureStarted() |
| { |
| // Called from WI.TimelineObserver. |
| |
| if (this._isCapturing) |
| this.stopCapturing(); |
| |
| this._initiatedByBackendStart = true; |
| |
| // We may already have an fresh TimelineRecording created if autoCaptureStarted is received |
| // between sending the Timeline.start command and receiving Timeline.capturingStarted event. |
| // In that case, there is no need to call startCapturing again. Reuse the fresh recording. |
| if (!this._waitingForCapturingStartedEvent) { |
| const createNewRecording = true; |
| this.startCapturing(createNewRecording); |
| } |
| |
| this._shouldSetAutoCapturingMainResource = true; |
| } |
| |
| programmaticCaptureStarted() |
| { |
| // Called from WI.TimelineObserver. |
| |
| this._initiatedByBackendStart = true; |
| |
| this._activeRecording.addScriptInstrumentForProgrammaticCapture(); |
| |
| const createNewRecording = false; |
| this.startCapturing(createNewRecording); |
| } |
| |
| programmaticCaptureStopped() |
| { |
| // Called from WI.TimelineObserver. |
| |
| this._initiatedByBackendStop = true; |
| |
| // FIXME: This is purely to avoid a noisy assert. Previously |
| // it was impossible to stop without stopping from the UI. |
| console.assert(!this._isCapturing); |
| this._isCapturing = true; |
| |
| this.stopCapturing(); |
| } |
| |
| eventRecorded(recordPayload) |
| { |
| // Called from WI.TimelineObserver. |
| |
| if (!this._isCapturing) |
| return; |
| |
| var records = []; |
| |
| // Iterate over the records tree using a stack. Doing this recursively has |
| // been known to cause a call stack overflow. https://webkit.org/b/79106 |
| var stack = [{array: [recordPayload], parent: null, parentRecord: null, index: 0}]; |
| while (stack.length) { |
| var entry = stack.lastValue; |
| var recordPayloads = entry.array; |
| |
| if (entry.index < recordPayloads.length) { |
| var recordPayload = recordPayloads[entry.index]; |
| var record = this._processEvent(recordPayload, entry.parent); |
| if (record) { |
| record.parent = entry.parentRecord; |
| records.push(record); |
| if (entry.parentRecord) |
| entry.parentRecord.children.push(record); |
| } |
| |
| if (recordPayload.children && recordPayload.children.length) |
| stack.push({array: recordPayload.children, parent: recordPayload, parentRecord: record || entry.parentRecord, index: 0}); |
| ++entry.index; |
| } else |
| stack.pop(); |
| } |
| |
| for (var record of records) { |
| if (record.type === WI.TimelineRecord.Type.RenderingFrame) { |
| if (!record.children.length) |
| continue; |
| record.setupFrameIndex(); |
| } |
| |
| this._addRecord(record); |
| } |
| } |
| |
| // Protected |
| |
| pageDOMContentLoadedEventFired(timestamp) |
| { |
| // Called from WI.PageObserver. |
| |
| console.assert(this._activeRecording); |
| console.assert(isNaN(WI.frameResourceManager.mainFrame.domContentReadyEventTimestamp)); |
| |
| let computedTimestamp = this.activeRecording.computeElapsedTime(timestamp); |
| |
| WI.frameResourceManager.mainFrame.markDOMContentReadyEvent(computedTimestamp); |
| |
| let eventMarker = new WI.TimelineMarker(computedTimestamp, WI.TimelineMarker.Type.DOMContentEvent); |
| this._activeRecording.addEventMarker(eventMarker); |
| } |
| |
| pageLoadEventFired(timestamp) |
| { |
| // Called from WI.PageObserver. |
| |
| console.assert(this._activeRecording); |
| console.assert(isNaN(WI.frameResourceManager.mainFrame.loadEventTimestamp)); |
| |
| let computedTimestamp = this.activeRecording.computeElapsedTime(timestamp); |
| |
| WI.frameResourceManager.mainFrame.markLoadEvent(computedTimestamp); |
| |
| let eventMarker = new WI.TimelineMarker(computedTimestamp, WI.TimelineMarker.Type.LoadEvent); |
| this._activeRecording.addEventMarker(eventMarker); |
| |
| this._stopAutoRecordingSoon(); |
| } |
| |
| memoryTrackingStart(timestamp) |
| { |
| // Called from WI.MemoryObserver. |
| |
| this.capturingStarted(timestamp); |
| } |
| |
| memoryTrackingUpdate(event) |
| { |
| // Called from WI.MemoryObserver. |
| |
| if (!this._isCapturing) |
| return; |
| |
| this._addRecord(new WI.MemoryTimelineRecord(event.timestamp, event.categories)); |
| } |
| |
| memoryTrackingComplete() |
| { |
| // Called from WI.MemoryObserver. |
| } |
| |
| heapTrackingStarted(timestamp, snapshot) |
| { |
| // Called from WI.HeapObserver. |
| |
| this._addRecord(new WI.HeapAllocationsTimelineRecord(timestamp, snapshot)); |
| |
| this.capturingStarted(timestamp); |
| } |
| |
| heapTrackingCompleted(timestamp, snapshot) |
| { |
| // Called from WI.HeapObserver. |
| |
| this._addRecord(new WI.HeapAllocationsTimelineRecord(timestamp, snapshot)); |
| } |
| |
| heapSnapshotAdded(timestamp, snapshot) |
| { |
| // Called from WI.HeapAllocationsInstrument. |
| |
| this._addRecord(new WI.HeapAllocationsTimelineRecord(timestamp, snapshot)); |
| } |
| |
| // Private |
| |
| _processRecord(recordPayload, parentRecordPayload) |
| { |
| var startTime = this.activeRecording.computeElapsedTime(recordPayload.startTime); |
| var endTime = this.activeRecording.computeElapsedTime(recordPayload.endTime); |
| var callFrames = this._callFramesFromPayload(recordPayload.stackTrace); |
| |
| var significantCallFrame = null; |
| if (callFrames) { |
| for (var i = 0; i < callFrames.length; ++i) { |
| if (callFrames[i].nativeCode) |
| continue; |
| significantCallFrame = callFrames[i]; |
| break; |
| } |
| } |
| |
| var sourceCodeLocation = significantCallFrame && significantCallFrame.sourceCodeLocation; |
| |
| switch (recordPayload.type) { |
| case TimelineAgent.EventType.ScheduleStyleRecalculation: |
| console.assert(isNaN(endTime)); |
| |
| // Pass the startTime as the endTime since this record type has no duration. |
| return new WI.LayoutTimelineRecord(WI.LayoutTimelineRecord.EventType.InvalidateStyles, startTime, startTime, callFrames, sourceCodeLocation); |
| |
| case TimelineAgent.EventType.RecalculateStyles: |
| return new WI.LayoutTimelineRecord(WI.LayoutTimelineRecord.EventType.RecalculateStyles, startTime, endTime, callFrames, sourceCodeLocation); |
| |
| case TimelineAgent.EventType.InvalidateLayout: |
| console.assert(isNaN(endTime)); |
| |
| // Pass the startTime as the endTime since this record type has no duration. |
| return new WI.LayoutTimelineRecord(WI.LayoutTimelineRecord.EventType.InvalidateLayout, startTime, startTime, callFrames, sourceCodeLocation); |
| |
| case TimelineAgent.EventType.Layout: |
| var layoutRecordType = sourceCodeLocation ? WI.LayoutTimelineRecord.EventType.ForcedLayout : WI.LayoutTimelineRecord.EventType.Layout; |
| var quad = new WI.Quad(recordPayload.data.root); |
| return new WI.LayoutTimelineRecord(layoutRecordType, startTime, endTime, callFrames, sourceCodeLocation, quad); |
| |
| case TimelineAgent.EventType.Paint: |
| var quad = new WI.Quad(recordPayload.data.clip); |
| return new WI.LayoutTimelineRecord(WI.LayoutTimelineRecord.EventType.Paint, startTime, endTime, callFrames, sourceCodeLocation, quad); |
| |
| case TimelineAgent.EventType.Composite: |
| return new WI.LayoutTimelineRecord(WI.LayoutTimelineRecord.EventType.Composite, startTime, endTime, callFrames, sourceCodeLocation); |
| |
| case TimelineAgent.EventType.RenderingFrame: |
| if (!recordPayload.children || !recordPayload.children.length) |
| return null; |
| |
| return new WI.RenderingFrameTimelineRecord(startTime, endTime); |
| |
| case TimelineAgent.EventType.EvaluateScript: |
| if (!sourceCodeLocation) { |
| var mainFrame = WI.frameResourceManager.mainFrame; |
| var scriptResource = mainFrame.url === recordPayload.data.url ? mainFrame.mainResource : mainFrame.resourceForURL(recordPayload.data.url, true); |
| if (scriptResource) { |
| // The lineNumber is 1-based, but we expect 0-based. |
| var lineNumber = recordPayload.data.lineNumber - 1; |
| |
| // FIXME: No column number is provided. |
| sourceCodeLocation = scriptResource.createSourceCodeLocation(lineNumber, 0); |
| } |
| } |
| |
| var profileData = recordPayload.data.profile; |
| |
| var record; |
| switch (parentRecordPayload && parentRecordPayload.type) { |
| case TimelineAgent.EventType.TimerFire: |
| record = new WI.ScriptTimelineRecord(WI.ScriptTimelineRecord.EventType.TimerFired, startTime, endTime, callFrames, sourceCodeLocation, parentRecordPayload.data.timerId, profileData); |
| break; |
| default: |
| record = new WI.ScriptTimelineRecord(WI.ScriptTimelineRecord.EventType.ScriptEvaluated, startTime, endTime, callFrames, sourceCodeLocation, null, profileData); |
| break; |
| } |
| |
| this._webTimelineScriptRecordsExpectingScriptProfilerEvents.push(record); |
| return record; |
| |
| case TimelineAgent.EventType.ConsoleProfile: |
| var profileData = recordPayload.data.profile; |
| // COMPATIBILITY (iOS 9): With the Sampling Profiler, profiles no longer include legacy profile data. |
| console.assert(profileData || TimelineAgent.setInstruments); |
| return new WI.ScriptTimelineRecord(WI.ScriptTimelineRecord.EventType.ConsoleProfileRecorded, startTime, endTime, callFrames, sourceCodeLocation, recordPayload.data.title, profileData); |
| |
| case TimelineAgent.EventType.TimerFire: |
| case TimelineAgent.EventType.EventDispatch: |
| case TimelineAgent.EventType.FireAnimationFrame: |
| // These are handled when the parent of FunctionCall or EvaluateScript. |
| break; |
| |
| case TimelineAgent.EventType.FunctionCall: |
| // FunctionCall always happens as a child of another record, and since the FunctionCall record |
| // has useful info we just make the timeline record here (combining the data from both records). |
| if (!parentRecordPayload) { |
| console.warn("Unexpectedly received a FunctionCall timeline record without a parent record"); |
| break; |
| } |
| |
| if (!sourceCodeLocation) { |
| var mainFrame = WI.frameResourceManager.mainFrame; |
| var scriptResource = mainFrame.url === recordPayload.data.scriptName ? mainFrame.mainResource : mainFrame.resourceForURL(recordPayload.data.scriptName, true); |
| if (scriptResource) { |
| // The lineNumber is 1-based, but we expect 0-based. |
| var lineNumber = recordPayload.data.scriptLine - 1; |
| |
| // FIXME: No column number is provided. |
| sourceCodeLocation = scriptResource.createSourceCodeLocation(lineNumber, 0); |
| } |
| } |
| |
| var profileData = recordPayload.data.profile; |
| |
| var record; |
| switch (parentRecordPayload.type) { |
| case TimelineAgent.EventType.TimerFire: |
| record = new WI.ScriptTimelineRecord(WI.ScriptTimelineRecord.EventType.TimerFired, startTime, endTime, callFrames, sourceCodeLocation, parentRecordPayload.data.timerId, profileData); |
| break; |
| case TimelineAgent.EventType.EventDispatch: |
| record = new WI.ScriptTimelineRecord(WI.ScriptTimelineRecord.EventType.EventDispatched, startTime, endTime, callFrames, sourceCodeLocation, parentRecordPayload.data.type, profileData); |
| break; |
| case TimelineAgent.EventType.FireAnimationFrame: |
| record = new WI.ScriptTimelineRecord(WI.ScriptTimelineRecord.EventType.AnimationFrameFired, startTime, endTime, callFrames, sourceCodeLocation, parentRecordPayload.data.id, profileData); |
| break; |
| case TimelineAgent.EventType.FunctionCall: |
| record = new WI.ScriptTimelineRecord(WI.ScriptTimelineRecord.EventType.ScriptEvaluated, startTime, endTime, callFrames, sourceCodeLocation, parentRecordPayload.data.id, profileData); |
| break; |
| case TimelineAgent.EventType.RenderingFrame: |
| record = new WI.ScriptTimelineRecord(WI.ScriptTimelineRecord.EventType.ScriptEvaluated, startTime, endTime, callFrames, sourceCodeLocation, parentRecordPayload.data.id, profileData); |
| break; |
| |
| default: |
| console.assert(false, "Missed FunctionCall embedded inside of: " + parentRecordPayload.type); |
| break; |
| } |
| |
| if (record) { |
| this._webTimelineScriptRecordsExpectingScriptProfilerEvents.push(record); |
| return record; |
| } |
| break; |
| |
| case TimelineAgent.EventType.ProbeSample: |
| // Pass the startTime as the endTime since this record type has no duration. |
| sourceCodeLocation = WI.probeManager.probeForIdentifier(recordPayload.data.probeId).breakpoint.sourceCodeLocation; |
| return new WI.ScriptTimelineRecord(WI.ScriptTimelineRecord.EventType.ProbeSampleRecorded, startTime, startTime, callFrames, sourceCodeLocation, recordPayload.data.probeId); |
| |
| case TimelineAgent.EventType.TimerInstall: |
| console.assert(isNaN(endTime)); |
| |
| // Pass the startTime as the endTime since this record type has no duration. |
| var timerDetails = {timerId: recordPayload.data.timerId, timeout: recordPayload.data.timeout, repeating: !recordPayload.data.singleShot}; |
| return new WI.ScriptTimelineRecord(WI.ScriptTimelineRecord.EventType.TimerInstalled, startTime, startTime, callFrames, sourceCodeLocation, timerDetails); |
| |
| case TimelineAgent.EventType.TimerRemove: |
| console.assert(isNaN(endTime)); |
| |
| // Pass the startTime as the endTime since this record type has no duration. |
| return new WI.ScriptTimelineRecord(WI.ScriptTimelineRecord.EventType.TimerRemoved, startTime, startTime, callFrames, sourceCodeLocation, recordPayload.data.timerId); |
| |
| case TimelineAgent.EventType.RequestAnimationFrame: |
| console.assert(isNaN(endTime)); |
| |
| // Pass the startTime as the endTime since this record type has no duration. |
| return new WI.ScriptTimelineRecord(WI.ScriptTimelineRecord.EventType.AnimationFrameRequested, startTime, startTime, callFrames, sourceCodeLocation, recordPayload.data.id); |
| |
| case TimelineAgent.EventType.CancelAnimationFrame: |
| console.assert(isNaN(endTime)); |
| |
| // Pass the startTime as the endTime since this record type has no duration. |
| return new WI.ScriptTimelineRecord(WI.ScriptTimelineRecord.EventType.AnimationFrameCanceled, startTime, startTime, callFrames, sourceCodeLocation, recordPayload.data.id); |
| |
| default: |
| console.error("Missing handling of Timeline Event Type: " + recordPayload.type); |
| } |
| |
| return null; |
| } |
| |
| _processEvent(recordPayload, parentRecordPayload) |
| { |
| switch (recordPayload.type) { |
| case TimelineAgent.EventType.TimeStamp: |
| var timestamp = this.activeRecording.computeElapsedTime(recordPayload.startTime); |
| var eventMarker = new WI.TimelineMarker(timestamp, WI.TimelineMarker.Type.TimeStamp, recordPayload.data.message); |
| this._activeRecording.addEventMarker(eventMarker); |
| break; |
| |
| case TimelineAgent.EventType.Time: |
| case TimelineAgent.EventType.TimeEnd: |
| // FIXME: <https://webkit.org/b/150690> Web Inspector: Show console.time/timeEnd ranges in Timeline |
| // FIXME: Make use of "message" payload properties. |
| break; |
| |
| default: |
| return this._processRecord(recordPayload, parentRecordPayload); |
| } |
| |
| return null; |
| } |
| |
| _loadNewRecording() |
| { |
| if (this._activeRecording && this._activeRecording.isEmpty()) |
| return; |
| |
| let instruments = this.enabledTimelineTypes.map((type) => WI.Instrument.createForTimelineType(type)); |
| let identifier = this._nextRecordingIdentifier++; |
| let newRecording = new WI.TimelineRecording(identifier, WI.UIString("Timeline Recording %d").format(identifier), instruments); |
| |
| this._recordings.push(newRecording); |
| this.dispatchEventToListeners(WI.TimelineManager.Event.RecordingCreated, {recording: newRecording}); |
| |
| if (this._isCapturing) |
| this.stopCapturing(); |
| |
| var oldRecording = this._activeRecording; |
| if (oldRecording) |
| oldRecording.unloaded(); |
| |
| this._activeRecording = newRecording; |
| |
| // COMPATIBILITY (iOS 8): When using Legacy timestamps, a navigation will have computed |
| // the main resource's will send request timestamp in terms of the last page's base timestamp. |
| // Now that we have navigated, we should reset the legacy base timestamp and the |
| // will send request timestamp for the new main resource. This way, all new timeline |
| // records will be computed relative to the new navigation. |
| if (this._mainResourceForAutoCapturing && WI.TimelineRecording.isLegacy) { |
| console.assert(this._mainResourceForAutoCapturing.originalRequestWillBeSentTimestamp); |
| this._activeRecording.setLegacyBaseTimestamp(this._mainResourceForAutoCapturing.originalRequestWillBeSentTimestamp); |
| this._mainResourceForAutoCapturing._requestSentTimestamp = 0; |
| } |
| |
| this.dispatchEventToListeners(WI.TimelineManager.Event.RecordingLoaded, {oldRecording}); |
| } |
| |
| _callFramesFromPayload(payload) |
| { |
| if (!payload) |
| return null; |
| |
| return payload.map((x) => WI.CallFrame.fromPayload(WI.assumingMainTarget(), x)); |
| } |
| |
| _addRecord(record) |
| { |
| this._activeRecording.addRecord(record); |
| |
| // Only worry about dead time after the load event. |
| if (WI.frameResourceManager.mainFrame && isNaN(WI.frameResourceManager.mainFrame.loadEventTimestamp)) |
| this._resetAutoRecordingDeadTimeTimeout(); |
| } |
| |
| _attemptAutoCapturingForFrame(frame) |
| { |
| if (!this._autoCaptureOnPageLoad) |
| return false; |
| |
| if (!frame.isMainFrame()) |
| return false; |
| |
| // COMPATIBILITY (iOS 9): Timeline.setAutoCaptureEnabled did not exist. |
| // Perform auto capture in the frontend. |
| if (!TimelineAgent.setAutoCaptureEnabled) |
| return this._legacyAttemptStartAutoCapturingForFrame(frame); |
| |
| if (!this._shouldSetAutoCapturingMainResource) |
| return false; |
| |
| console.assert(this._isCapturing, "We saw autoCaptureStarted so we should already be capturing"); |
| |
| let mainResource = frame.provisionalMainResource || frame.mainResource; |
| if (mainResource === this._mainResourceForAutoCapturing) |
| return false; |
| |
| let oldMainResource = frame.mainResource || null; |
| this._isCapturingPageReload = oldMainResource !== null && oldMainResource.url === mainResource.url; |
| |
| this._mainResourceForAutoCapturing = mainResource; |
| |
| this._addRecord(new WI.ResourceTimelineRecord(mainResource)); |
| |
| this._resetAutoRecordingMaxTimeTimeout(); |
| |
| this._shouldSetAutoCapturingMainResource = false; |
| |
| return true; |
| } |
| |
| _legacyAttemptStartAutoCapturingForFrame(frame) |
| { |
| if (this._isCapturing && !this._mainResourceForAutoCapturing) |
| return false; |
| |
| let mainResource = frame.provisionalMainResource || frame.mainResource; |
| if (mainResource === this._mainResourceForAutoCapturing) |
| return false; |
| |
| let oldMainResource = frame.mainResource || null; |
| this._isCapturingPageReload = oldMainResource !== null && oldMainResource.url === mainResource.url; |
| |
| if (this._isCapturing) |
| this.stopCapturing(); |
| |
| this._mainResourceForAutoCapturing = mainResource; |
| |
| this._loadNewRecording(); |
| |
| this.startCapturing(); |
| |
| this._addRecord(new WI.ResourceTimelineRecord(mainResource)); |
| |
| this._resetAutoRecordingMaxTimeTimeout(); |
| |
| return true; |
| } |
| |
| _stopAutoRecordingSoon() |
| { |
| // Only auto stop when auto capturing. |
| if (!this._isCapturing || !this._mainResourceForAutoCapturing) |
| return; |
| |
| if (this._stopCapturingTimeout) |
| clearTimeout(this._stopCapturingTimeout); |
| this._stopCapturingTimeout = setTimeout(this._boundStopCapturing, WI.TimelineManager.MaximumAutoRecordDurationAfterLoadEvent); |
| } |
| |
| _resetAutoRecordingMaxTimeTimeout() |
| { |
| if (this._stopCapturingTimeout) |
| clearTimeout(this._stopCapturingTimeout); |
| this._stopCapturingTimeout = setTimeout(this._boundStopCapturing, WI.TimelineManager.MaximumAutoRecordDuration); |
| } |
| |
| _resetAutoRecordingDeadTimeTimeout() |
| { |
| // Only monitor dead time when auto capturing. |
| if (!this._isCapturing || !this._mainResourceForAutoCapturing) |
| return; |
| |
| // Avoid unnecessary churning of timeout identifier by not tickling until 10ms have passed. |
| let now = Date.now(); |
| if (now <= this._lastDeadTimeTickle) |
| return; |
| this._lastDeadTimeTickle = now + 10; |
| |
| if (this._deadTimeTimeout) |
| clearTimeout(this._deadTimeTimeout); |
| this._deadTimeTimeout = setTimeout(this._boundStopCapturing, WI.TimelineManager.DeadTimeRequiredToStopAutoRecordingEarly); |
| } |
| |
| _provisionalLoadStarted(event) |
| { |
| this._attemptAutoCapturingForFrame(event.target); |
| } |
| |
| _mainResourceDidChange(event) |
| { |
| let frame = event.target; |
| if (frame.isMainFrame() && WI.settings.clearNetworkOnNavigate.value) |
| this._persistentNetworkTimeline.reset(); |
| |
| let mainResource = frame.mainResource; |
| let record = new WI.ResourceTimelineRecord(mainResource); |
| if (!isNaN(record.startTime)) |
| this._persistentNetworkTimeline.addRecord(record); |
| |
| // Ignore resource events when there isn't a main frame yet. Those events are triggered by |
| // loading the cached resources when the inspector opens, and they do not have timing information. |
| if (!WI.frameResourceManager.mainFrame) |
| return; |
| |
| if (this._attemptAutoCapturingForFrame(frame)) |
| return; |
| |
| if (!this._isCapturing) |
| return; |
| |
| if (mainResource === this._mainResourceForAutoCapturing) |
| return; |
| |
| this._addRecord(record); |
| } |
| |
| _resourceWasAdded(event) |
| { |
| var record = new WI.ResourceTimelineRecord(event.data.resource); |
| if (!isNaN(record.startTime)) |
| this._persistentNetworkTimeline.addRecord(record); |
| |
| // Ignore resource events when there isn't a main frame yet. Those events are triggered by |
| // loading the cached resources when the inspector opens, and they do not have timing information. |
| if (!WI.frameResourceManager.mainFrame) |
| return; |
| |
| if (!this._isCapturing) |
| return; |
| |
| this._addRecord(record); |
| } |
| |
| _garbageCollected(event) |
| { |
| if (!this._isCapturing) |
| return; |
| |
| let collection = event.data.collection; |
| this._addRecord(new WI.ScriptTimelineRecord(WI.ScriptTimelineRecord.EventType.GarbageCollected, collection.startTime, collection.endTime, null, null, collection)); |
| } |
| |
| _memoryPressure(event) |
| { |
| if (!this._isCapturing) |
| return; |
| |
| this.activeRecording.addMemoryPressureEvent(event.data.memoryPressureEvent); |
| } |
| |
| _scriptProfilerTypeToScriptTimelineRecordType(type) |
| { |
| switch (type) { |
| case ScriptProfilerAgent.EventType.API: |
| return WI.ScriptTimelineRecord.EventType.APIScriptEvaluated; |
| case ScriptProfilerAgent.EventType.Microtask: |
| return WI.ScriptTimelineRecord.EventType.MicrotaskDispatched; |
| case ScriptProfilerAgent.EventType.Other: |
| return WI.ScriptTimelineRecord.EventType.ScriptEvaluated; |
| } |
| } |
| |
| scriptProfilerProgrammaticCaptureStarted() |
| { |
| // FIXME: <https://webkit.org/b/158753> Generalize the concept of Instruments on the backend to work equally for JSContext and Web inspection |
| console.assert(WI.debuggableType === WI.DebuggableType.JavaScript); |
| console.assert(!this._isCapturing); |
| |
| this.programmaticCaptureStarted(); |
| } |
| |
| scriptProfilerProgrammaticCaptureStopped() |
| { |
| // FIXME: <https://webkit.org/b/158753> Generalize the concept of Instruments on the backend to work equally for JSContext and Web inspection |
| console.assert(WI.debuggableType === WI.DebuggableType.JavaScript); |
| console.assert(this._isCapturing); |
| |
| this.programmaticCaptureStopped(); |
| } |
| |
| scriptProfilerTrackingStarted(timestamp) |
| { |
| this._scriptProfilerRecords = []; |
| |
| this.capturingStarted(timestamp); |
| } |
| |
| scriptProfilerTrackingUpdated(event) |
| { |
| let {startTime, endTime, type} = event; |
| let scriptRecordType = this._scriptProfilerTypeToScriptTimelineRecordType(type); |
| let record = new WI.ScriptTimelineRecord(scriptRecordType, startTime, endTime, null, null, null, null); |
| record.__scriptProfilerType = type; |
| this._scriptProfilerRecords.push(record); |
| |
| // "Other" events, generated by Web content, will have wrapping Timeline records |
| // and need to be merged. Non-Other events, generated purely by the JavaScript |
| // engine or outside of the page via APIs, will not have wrapping Timeline |
| // records, so these records can just be added right now. |
| if (type !== ScriptProfilerAgent.EventType.Other) |
| this._addRecord(record); |
| } |
| |
| scriptProfilerTrackingCompleted(samples) |
| { |
| console.assert(!this._webTimelineScriptRecordsExpectingScriptProfilerEvents || this._scriptProfilerRecords.length >= this._webTimelineScriptRecordsExpectingScriptProfilerEvents.length); |
| |
| if (samples) { |
| let {stackTraces} = samples; |
| let topDownCallingContextTree = this.activeRecording.topDownCallingContextTree; |
| let bottomUpCallingContextTree = this.activeRecording.bottomUpCallingContextTree; |
| let topFunctionsTopDownCallingContextTree = this.activeRecording.topFunctionsTopDownCallingContextTree; |
| let topFunctionsBottomUpCallingContextTree = this.activeRecording.topFunctionsBottomUpCallingContextTree; |
| |
| // Calculate a per-sample duration. |
| let timestampIndex = 0; |
| let timestampCount = stackTraces.length; |
| let sampleDurations = new Array(timestampCount); |
| let sampleDurationIndex = 0; |
| const defaultDuration = 1 / 1000; // 1ms. |
| for (let i = 0; i < this._scriptProfilerRecords.length; ++i) { |
| let record = this._scriptProfilerRecords[i]; |
| |
| // Use a default duration for timestamps recorded outside of ScriptProfiler events. |
| while (timestampIndex < timestampCount && stackTraces[timestampIndex].timestamp < record.startTime) { |
| sampleDurations[sampleDurationIndex++] = defaultDuration; |
| timestampIndex++; |
| } |
| |
| // Average the duration per sample across all samples during the record. |
| let samplesInRecord = 0; |
| while (timestampIndex < timestampCount && stackTraces[timestampIndex].timestamp < record.endTime) { |
| timestampIndex++; |
| samplesInRecord++; |
| } |
| if (samplesInRecord) { |
| let averageDuration = (record.endTime - record.startTime) / samplesInRecord; |
| sampleDurations.fill(averageDuration, sampleDurationIndex, sampleDurationIndex + samplesInRecord); |
| sampleDurationIndex += samplesInRecord; |
| } |
| } |
| |
| // Use a default duration for timestamps recorded outside of ScriptProfiler events. |
| if (timestampIndex < timestampCount) |
| sampleDurations.fill(defaultDuration, sampleDurationIndex); |
| |
| for (let i = 0; i < stackTraces.length; i++) { |
| topDownCallingContextTree.updateTreeWithStackTrace(stackTraces[i], sampleDurations[i]); |
| bottomUpCallingContextTree.updateTreeWithStackTrace(stackTraces[i], sampleDurations[i]); |
| topFunctionsTopDownCallingContextTree.updateTreeWithStackTrace(stackTraces[i], sampleDurations[i]); |
| topFunctionsBottomUpCallingContextTree.updateTreeWithStackTrace(stackTraces[i], sampleDurations[i]); |
| } |
| |
| // FIXME: This transformation should not be needed after introducing ProfileView. |
| // Once we eliminate ProfileNodeTreeElements and ProfileNodeDataGridNodes. |
| // <https://webkit.org/b/154973> Web Inspector: Timelines UI redesign: Remove TimelineSidebarPanel |
| for (let i = 0; i < this._scriptProfilerRecords.length; ++i) { |
| let record = this._scriptProfilerRecords[i]; |
| record.profilePayload = topDownCallingContextTree.toCPUProfilePayload(record.startTime, record.endTime); |
| } |
| } |
| |
| // Associate the ScriptProfiler created records with Web Timeline records. |
| // Filter out the already added ScriptProfiler events which should not have been wrapped. |
| if (WI.debuggableType !== WI.DebuggableType.JavaScript) { |
| this._scriptProfilerRecords = this._scriptProfilerRecords.filter((x) => x.__scriptProfilerType === ScriptProfilerAgent.EventType.Other); |
| this._mergeScriptProfileRecords(); |
| } |
| |
| this._scriptProfilerRecords = null; |
| |
| let timeline = this.activeRecording.timelineForRecordType(WI.TimelineRecord.Type.Script); |
| timeline.refresh(); |
| } |
| |
| _mergeScriptProfileRecords() |
| { |
| let nextRecord = function(list) { return list.shift() || null; }; |
| let nextWebTimelineRecord = nextRecord.bind(null, this._webTimelineScriptRecordsExpectingScriptProfilerEvents); |
| let nextScriptProfilerRecord = nextRecord.bind(null, this._scriptProfilerRecords); |
| let recordEnclosesRecord = function(record1, record2) { |
| return record1.startTime <= record2.startTime && record1.endTime >= record2.endTime; |
| }; |
| |
| let webRecord = nextWebTimelineRecord(); |
| let profilerRecord = nextScriptProfilerRecord(); |
| |
| while (webRecord && profilerRecord) { |
| // Skip web records with parent web records. For example an EvaluateScript with an EvaluateScript parent. |
| if (webRecord.parent instanceof WI.ScriptTimelineRecord) { |
| console.assert(recordEnclosesRecord(webRecord.parent, webRecord), "Timeline Record incorrectly wrapping another Timeline Record"); |
| webRecord = nextWebTimelineRecord(); |
| continue; |
| } |
| |
| // Normal case of a Web record wrapping a Script record. |
| if (recordEnclosesRecord(webRecord, profilerRecord)) { |
| webRecord.profilePayload = profilerRecord.profilePayload; |
| profilerRecord = nextScriptProfilerRecord(); |
| |
| // If there are more script profile records in the same time interval, add them |
| // as individual script evaluated records with profiles. This can happen with |
| // web microtask checkpoints that are technically inside of other web records. |
| // FIXME: <https://webkit.org/b/152903> Web Inspector: Timeline Cleanup: Better Timeline Record for Microtask Checkpoints |
| while (profilerRecord && recordEnclosesRecord(webRecord, profilerRecord)) { |
| this._addRecord(profilerRecord); |
| profilerRecord = nextScriptProfilerRecord(); |
| } |
| |
| webRecord = nextWebTimelineRecord(); |
| continue; |
| } |
| |
| // Profiler Record is entirely after the Web Record. This would mean an empty web record. |
| if (profilerRecord.startTime > webRecord.endTime) { |
| console.warn("Unexpected case of a Timeline record not containing a ScriptProfiler event and profile data"); |
| webRecord = nextWebTimelineRecord(); |
| continue; |
| } |
| |
| // Non-wrapped profiler record. |
| console.warn("Unexpected case of a ScriptProfiler event not being contained by a Timeline record"); |
| this._addRecord(profilerRecord); |
| profilerRecord = nextScriptProfilerRecord(); |
| } |
| |
| // Skipping the remaining ScriptProfiler events to match the current UI for handling Timeline records. |
| // However, the remaining ScriptProfiler records are valid and could be shown. |
| // FIXME: <https://webkit.org/b/152904> Web Inspector: Timeline UI should keep up with processing all incoming records |
| } |
| |
| _updateAutoCaptureInstruments() |
| { |
| if (!window.TimelineAgent) |
| return; |
| |
| if (!TimelineAgent.setInstruments) |
| return; |
| |
| let instrumentSet = new Set; |
| let enabledTimelineTypes = this._enabledTimelineTypesSetting.value; |
| |
| for (let timelineType of enabledTimelineTypes) { |
| switch (timelineType) { |
| case WI.TimelineRecord.Type.Script: |
| instrumentSet.add(TimelineAgent.Instrument.ScriptProfiler); |
| break; |
| case WI.TimelineRecord.Type.HeapAllocations: |
| instrumentSet.add(TimelineAgent.Instrument.Heap); |
| break; |
| case WI.TimelineRecord.Type.Network: |
| case WI.TimelineRecord.Type.RenderingFrame: |
| case WI.TimelineRecord.Type.Layout: |
| instrumentSet.add(TimelineAgent.Instrument.Timeline); |
| break; |
| case WI.TimelineRecord.Type.Memory: |
| instrumentSet.add(TimelineAgent.Instrument.Memory); |
| break; |
| } |
| } |
| |
| TimelineAgent.setInstruments([...instrumentSet]); |
| } |
| }; |
| |
| WI.TimelineManager.Event = { |
| RecordingCreated: "timeline-manager-recording-created", |
| RecordingLoaded: "timeline-manager-recording-loaded", |
| CapturingWillStart: "timeline-manager-capturing-will-start", |
| CapturingStarted: "timeline-manager-capturing-started", |
| CapturingStopped: "timeline-manager-capturing-stopped" |
| }; |
| |
| WI.TimelineManager.MaximumAutoRecordDuration = 90000; // 90 seconds |
| WI.TimelineManager.MaximumAutoRecordDurationAfterLoadEvent = 10000; // 10 seconds |
| WI.TimelineManager.DeadTimeRequiredToStopAutoRecordingEarly = 2000; // 2 seconds |
