First version of PerformanceObserver

Source/core/timing/PerformanceBase.cpp

 /*
  * Copyright (C) 2010 Google Inc. All rights reserved.
  * Copyright (C) 2012 Intel 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
@@ skipping 17 matching lines @@
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "config.h"
 #include "core/timing/PerformanceBase.h"
 
 #include "core/dom/Document.h"
 #include "core/events/Event.h"
 #include "core/timing/PerformanceCompositeTiming.h"
+#include "core/timing/PerformanceObserver.h"
 #include "core/timing/PerformanceRenderTiming.h"
 #include "core/timing/PerformanceResourceTiming.h"
 #include "core/timing/PerformanceUserTiming.h"
 #include "platform/network/ResourceTimingInfo.h"
 #include "platform/weborigin/SecurityOrigin.h"
 #include "wtf/CurrentTime.h"
 
 namespace blink {
 
 static const size_t defaultResourceTimingBufferSize = 150;
 static const size_t defaultFrameTimingBufferSize = 150;
 
 PerformanceBase::PerformanceBase(double timeOrigin)
     : m_frameTimingBufferSize(defaultFrameTimingBufferSize)
     , m_resourceTimingBufferSize(defaultResourceTimingBufferSize)
     , m_timeOrigin(timeOrigin)
     , m_userTiming(nullptr)
+    , m_observerFilterOptions(PerformanceEntry::Invalid)
 {
 }
 
 PerformanceBase::~PerformanceBase()
 {
 }
 
 const AtomicString& PerformanceBase::interfaceName() const
 {
     return EventTargetNames::Performance;
@@ skipping 16 matching lines @@
         entries.appendVector(m_userTiming->getMeasures());
     }
 
     std::sort(entries.begin(), entries.end(), PerformanceEntry::startTimeCompareLessThan);
     return entries;
 }
 
 PerformanceEntryVector PerformanceBase::getEntriesByType(const String& entryType)
 {
     PerformanceEntryVector entries;
+    PerformanceEntry::EntryType entryTypeEnum = PerformanceEntry::toEntryTypeEnum(entryType);

[esprehn, 2015/07/24 08:23:12]

Maybe just |type| ?

[MikeB, 2015/07/24 19:30:38]

Done.

 
-    if (equalIgnoringCase(entryType, "resource")) {
+    if (entryTypeEnum == PerformanceEntry::Invalid)
+        return entries;
+
+    if (entryTypeEnum == PerformanceEntry::Resource) {
         for (const auto& resource : m_resourceTimingBuffer)
             entries.append(resource);
     }
 
-    if (equalIgnoringCase(entryType, "composite")
-        || equalIgnoringCase(entryType, "render")) {
+if (entryTypeEnum == PerformanceEntry::Composite || entryTypeEnum == PerformanceEntry::Render) {
         for (const auto& frame : m_frameTimingBuffer) {
-            if (equalIgnoringCase(entryType, frame->entryType())) {
+            if (entryTypeEnum == frame->entryTypeEnum()) {
                 entries.append(frame);
             }
         }
     }
 
     if (m_userTiming) {
-        if (equalIgnoringCase(entryType, "mark"))
+        if (entryTypeEnum == PerformanceEntry::Mark)
             entries.appendVector(m_userTiming->getMarks());
-        else if (equalIgnoringCase(entryType, "measure"))
+        else if (entryTypeEnum == PerformanceEntry::Measure)
             entries.appendVector(m_userTiming->getMeasures());
     }
 
     std::sort(entries.begin(), entries.end(), PerformanceEntry::startTimeCompareLessThan);
     return entries;
 }
 
 PerformanceEntryVector PerformanceBase::getEntriesByName(const String& name, const String& entryType)
 {
     PerformanceEntryVector entries;
+    PerformanceEntry::EntryType entryTypeEnum = PerformanceEntry::toEntryTypeEnum(entryType);
 
-    if (entryType.isNull() || equalIgnoringCase(entryType, "resource")) {
+    if (!entryType.isNull() && entryTypeEnum == PerformanceEntry::Invalid)
+        return entries;
+
+    if (entryType.isNull() || entryTypeEnum == PerformanceEntry::Resource) {
         for (const auto& resource : m_resourceTimingBuffer) {
             if (resource->name() == name)
                 entries.append(resource);
         }
     }
 
-    if (entryType.isNull() || equalIgnoringCase(entryType, "composite")
-        || equalIgnoringCase(entryType, "render")) {
+    if (entryType.isNull() || entryTypeEnum == PerformanceEntry::Composite || entryTypeEnum == PerformanceEntry::Render) {
         for (const auto& frame : m_frameTimingBuffer) {
             if (frame->name() == name && (entryType.isNull()
                 || equalIgnoringCase(entryType, frame->entryType()))) {
                 entries.append(frame);
             }
         }
     }
 
     if (m_userTiming) {
-        if (entryType.isNull() || equalIgnoringCase(entryType, "mark"))
+        if (entryType.isNull() || entryTypeEnum == PerformanceEntry::Mark)
             entries.appendVector(m_userTiming->getMarks(name));
-        if (entryType.isNull() || equalIgnoringCase(entryType, "measure"))
+        if (entryType.isNull() || entryTypeEnum == PerformanceEntry::Measure)
             entries.appendVector(m_userTiming->getMeasures(name));
     }
 
     std::sort(entries.begin(), entries.end(), PerformanceEntry::startTimeCompareLessThan);
     return entries;
 }
 
 void PerformanceBase::webkitClearResourceTimings()
 {
     m_resourceTimingBuffer.clear();
@@ skipping 52 matching lines @@
     for (const ResourceResponse& response : redirectChain) {
         if (!passesTimingAllowCheck(response, initiatorSecurityOrigin, emptyAtom))
             return false;
     }
 
     return true;
 }
 
 void PerformanceBase::addResourceTiming(const ResourceTimingInfo& info)
 {
-    if (isResourceTimingBufferFull())
+    if (isResourceTimingBufferFull() && !hasObserverFor(PerformanceEntry::Resource))
         return;
     SecurityOrigin* securityOrigin = nullptr;
     if (ExecutionContext* context = executionContext())
         securityOrigin = context->securityOrigin();
     if (!securityOrigin)
         return;
 
     const ResourceResponse& finalResponse = info.finalResponse();
     bool allowTimingDetails = passesTimingAllowCheck(finalResponse, *securityOrigin, info.originalTimingAllowOrigin());
     double startTime = info.initialTime();
@@ skipping 12 matching lines @@
         ASSERT(finalTiming);
         if (finalTiming)
             startTime = finalTiming->requestTime();
     }
 
     ResourceLoadTiming* lastRedirectTiming = redirectChain.last().resourceLoadTiming();
     ASSERT(lastRedirectTiming);
     double lastRedirectEndTime = lastRedirectTiming->receiveHeadersEnd();
 
     PerformanceEntry* entry = PerformanceResourceTiming::create(info, timeOrigin(), startTime, lastRedirectEndTime, allowTimingDetails, allowRedirectDetails);
-    addResourceTimingBuffer(entry);
+    notifyObserversOfEntry(entry);
+    if (!isResourceTimingBufferFull())
+        addResourceTimingBuffer(entry);
 }
 
 void PerformanceBase::addResourceTimingBuffer(PerformanceEntry* entry)
 {
     m_resourceTimingBuffer.append(entry);
 
     if (isResourceTimingBufferFull())
         dispatchEvent(Event::create(EventTypeNames::webkitresourcetimingbufferfull));
 }
 
 bool PerformanceBase::isResourceTimingBufferFull()
 {
     return m_resourceTimingBuffer.size() >= m_resourceTimingBufferSize;
 }
 
 void PerformanceBase::addRenderTiming(Document* initiatorDocument, unsigned sourceFrame, double startTime, double finishTime)
 {
-    if (isFrameTimingBufferFull())
+    if (isFrameTimingBufferFull() && !hasObserverFor(PerformanceEntry::Render))
         return;
 
     PerformanceEntry* entry = PerformanceRenderTiming::create(initiatorDocument, sourceFrame, startTime, finishTime);
-    addFrameTimingBuffer(entry);
+    notifyObserversOfEntry(entry);
+    if (!isFrameTimingBufferFull())
+        addFrameTimingBuffer(entry);
 }
 
 void PerformanceBase::addCompositeTiming(Document* initiatorDocument, unsigned sourceFrame, double startTime)
 {
-    if (isFrameTimingBufferFull())
+    if (isFrameTimingBufferFull() && !hasObserverFor(PerformanceEntry::Composite))
         return;
 
     PerformanceEntry* entry = PerformanceCompositeTiming::create(initiatorDocument, sourceFrame, startTime);
-    addFrameTimingBuffer(entry);
+    notifyObserversOfEntry(entry);
+    if (!isFrameTimingBufferFull())
+        addFrameTimingBuffer(entry);
 }
 
 void PerformanceBase::addFrameTimingBuffer(PerformanceEntry* entry)
 {
     m_frameTimingBuffer.append(entry);
 
     if (isFrameTimingBufferFull())
         dispatchEvent(Event::create(EventTypeNames::frametimingbufferfull));
 }
 
 bool PerformanceBase::isFrameTimingBufferFull()
 {
     return m_frameTimingBuffer.size() >= m_frameTimingBufferSize;
 }
 
 void PerformanceBase::mark(const String& markName, ExceptionState& exceptionState)
 {
     if (!m_userTiming)
         m_userTiming = UserTiming::create(this);
-    m_userTiming->mark(markName, exceptionState);
+    NewPerformanceEntryCallback callback = WTF::bind<PerformanceEntry*>(&PerformanceBase::notifyObserversOfEntry, this);
+    m_userTiming->mark(markName, callback, exceptionState);
 }
 
 void PerformanceBase::clearMarks(const String& markName)
 {
     if (!m_userTiming)
         m_userTiming = UserTiming::create(this);
     m_userTiming->clearMarks(markName);
 }
 
 void PerformanceBase::measure(const String& measureName, const String& startMark, const String& endMark, ExceptionState& exceptionState)
 {
     if (!m_userTiming)
         m_userTiming = UserTiming::create(this);
-    m_userTiming->measure(measureName, startMark, endMark, exceptionState);
+    NewPerformanceEntryCallback callback = WTF::bind<PerformanceEntry*>(&PerformanceBase::notifyObserversOfEntry, this);
+    m_userTiming->measure(measureName, startMark, endMark, callback, exceptionState);
 }
 
 void PerformanceBase::clearMeasures(const String& measureName)
 {
     if (!m_userTiming)
         m_userTiming = UserTiming::create(this);
     m_userTiming->clearMeasures(measureName);
 }
 
+void PerformanceBase::registerPerformanceObserver(PerformanceObserver* observer)
+{
+    m_observerFilterOptions |= observer->filterOptions();
+    m_observers.add(observer);
+}
+
+void PerformanceBase::unregisterPerformanceObserver(PerformanceObserver* oldObserver)
+{
+    m_observers.remove(oldObserver);
+    m_observerFilterOptions = PerformanceEntry::Invalid;
+    for (auto& observer : m_observers) {

[esprehn, 2015/07/24 08:23:12]

const auto&

[MikeB, 2015/07/24 19:30:38]

Done.

+        m_observerFilterOptions |= observer->filterOptions();
+    }
+}
+
+void PerformanceBase::notifyObserversOfEntry(PerformanceEntry* entry)
+{
+    for (auto& observer : m_observers) {
+        if (observer->filterOptions() & entry->entryTypeEnum())
+            observer->enqueuePerformanceEntry(entry);
+    }
+}
+
+bool PerformanceBase::hasObserverFor(PerformanceEntry::EntryType filterType)
+{
+    return m_observerFilterOptions & filterType;
+}
+
 double PerformanceBase::now() const
 {
     double nowSeconds = monotonicallyIncreasingTime() - m_timeOrigin;
     const double resolutionSeconds = 0.000005;
     return 1000.0 * floor(nowSeconds / resolutionSeconds) * resolutionSeconds;
 }
 
 DEFINE_TRACE(PerformanceBase)
 {
     visitor->trace(m_frameTimingBuffer);
     visitor->trace(m_resourceTimingBuffer);
     visitor->trace(m_userTiming);
+    visitor->trace(m_observers);
     EventTargetWithInlineData::trace(visitor);
 }
 
 } // namespace blink