167 lines
5.7 KiB
C++
167 lines
5.7 KiB
C++
/*
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* Copyright (C) 2017 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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#include "config.h"
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#include "PerformanceObserver.h"
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#include "DOMWindow.h"
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#include "Document.h"
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#include "InspectorInstrumentation.h"
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#include "Performance.h"
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#include "PerformanceObserverEntryList.h"
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#include "RuntimeEnabledFeatures.h"
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#include "WorkerGlobalScope.h"
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namespace WebCore {
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PerformanceObserver::PerformanceObserver(ScriptExecutionContext& scriptExecutionContext, Ref<PerformanceObserverCallback>&& callback)
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: m_callback(WTFMove(callback))
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{
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if (is<Document>(scriptExecutionContext)) {
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auto& document = downcast<Document>(scriptExecutionContext);
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if (DOMWindow* window = document.domWindow())
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m_performance = &window->performance();
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} else if (is<WorkerGlobalScope>(scriptExecutionContext)) {
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auto& workerGlobalScope = downcast<WorkerGlobalScope>(scriptExecutionContext);
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m_performance = &workerGlobalScope.performance();
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} else
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ASSERT_NOT_REACHED();
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}
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void PerformanceObserver::disassociate()
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{
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m_performance = nullptr;
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m_registered = false;
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}
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ExceptionOr<void> PerformanceObserver::observe(Init&& init)
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{
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if (!m_performance)
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return Exception { TypeError };
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bool isBuffered = false;
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OptionSet<PerformanceEntry::Type> filter;
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if (init.entryTypes) {
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if (init.type)
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return Exception { TypeError, "either entryTypes or type must be provided"_s };
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if (m_registered && m_isTypeObserver)
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return Exception { InvalidModificationError, "observer type can't be changed once registered"_s };
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for (auto& entryType : *init.entryTypes) {
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if (auto type = PerformanceEntry::parseEntryTypeString(entryType))
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filter.add(*type);
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}
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if (filter.isEmpty())
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return { };
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m_typeFilter = filter;
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} else {
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if (!init.type)
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return Exception { TypeError, "no type or entryTypes were provided"_s };
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if (m_registered && !m_isTypeObserver)
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return Exception { InvalidModificationError, "observer type can't be changed once registered"_s };
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m_isTypeObserver = true;
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if (auto type = PerformanceEntry::parseEntryTypeString(*init.type))
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filter.add(*type);
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else
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return { };
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if (init.buffered) {
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isBuffered = true;
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auto oldSize = m_entriesToDeliver.size();
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m_performance->appendBufferedEntriesByType(*init.type, m_entriesToDeliver, *this);
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auto begin = m_entriesToDeliver.begin();
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auto oldEnd = begin + oldSize;
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auto end = m_entriesToDeliver.end();
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std::stable_sort(oldEnd, end, PerformanceEntry::startTimeCompareLessThan);
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std::inplace_merge(begin, oldEnd, end, PerformanceEntry::startTimeCompareLessThan);
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}
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m_typeFilter.add(filter);
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}
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if (!m_registered) {
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m_performance->registerPerformanceObserver(*this);
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m_registered = true;
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}
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if (isBuffered)
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deliver();
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return { };
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}
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Vector<RefPtr<PerformanceEntry>> PerformanceObserver::takeRecords()
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{
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return std::exchange(m_entriesToDeliver, { });
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}
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void PerformanceObserver::disconnect()
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{
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if (m_performance)
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m_performance->unregisterPerformanceObserver(*this);
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m_registered = false;
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m_entriesToDeliver.clear();
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m_typeFilter = { };
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}
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void PerformanceObserver::queueEntry(PerformanceEntry& entry)
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{
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m_entriesToDeliver.append(&entry);
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}
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void PerformanceObserver::deliver()
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{
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if (m_entriesToDeliver.isEmpty())
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return;
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auto* context = m_callback->scriptExecutionContext();
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if (!context)
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return;
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Vector<RefPtr<PerformanceEntry>> entries = std::exchange(m_entriesToDeliver, { });
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auto list = PerformanceObserverEntryList::create(WTFMove(entries));
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InspectorInstrumentation::willFireObserverCallback(*context, "PerformanceObserver"_s);
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m_callback->handleEvent(*this, list, *this);
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InspectorInstrumentation::didFireObserverCallback(*context);
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}
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Vector<String> PerformanceObserver::supportedEntryTypes(ScriptExecutionContext& context)
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{
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Vector<String> entryTypes = {
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"mark"_s,
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"measure"_s,
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};
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if (context.settingsValues().performanceNavigationTimingAPIEnabled)
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entryTypes.append("navigation"_s);
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if (is<Document>(context) && downcast<Document>(context).supportsPaintTiming())
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entryTypes.append("paint"_s);
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entryTypes.append("resource"_s);
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return entryTypes;
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}
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} // namespace WebCore
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