PerformanceTiming.cpp [plain text]
#include "config.h"
#include "PerformanceTiming.h"
#if ENABLE(WEB_TIMING)
#include "Document.h"
#include "DocumentLoadTiming.h"
#include "DocumentLoader.h"
#include "DocumentTiming.h"
#include "Frame.h"
#include "ResourceLoadTiming.h"
#include "ResourceResponse.h"
#include <wtf/CurrentTime.h>
namespace WebCore {
static unsigned long long toIntegerMilliseconds(double seconds)
{
ASSERT(seconds >= 0);
return static_cast<unsigned long long>(seconds * 1000.0);
}
static double getPossiblySkewedTimeInKnownRange(double skewedTime, double lowerBound, double upperBound)
{
#if PLATFORM(CHROMIUM)
if (skewedTime <= lowerBound)
return lowerBound;
if (upperBound <= 0.0)
upperBound = currentTime();
if (skewedTime >= upperBound)
return upperBound;
#else
ASSERT_UNUSED(lowerBound, skewedTime >= lowerBound);
ASSERT_UNUSED(upperBound, skewedTime <= upperBound);
#endif
return skewedTime;
}
PerformanceTiming::PerformanceTiming(Frame* frame)
: m_frame(frame)
{
}
Frame* PerformanceTiming::frame() const
{
return m_frame;
}
void PerformanceTiming::disconnectFrame()
{
m_frame = 0;
}
unsigned long long PerformanceTiming::navigationStart() const
{
DocumentLoadTiming* timing = documentLoadTiming();
if (!timing)
return 0;
return toIntegerMilliseconds(timing->navigationStart);
}
unsigned long long PerformanceTiming::unloadEventStart() const
{
DocumentLoadTiming* timing = documentLoadTiming();
if (!timing)
return 0;
if (timing->hasCrossOriginRedirect || !timing->hasSameOriginAsPreviousDocument)
return 0;
return toIntegerMilliseconds(timing->unloadEventStart);
}
unsigned long long PerformanceTiming::unloadEventEnd() const
{
DocumentLoadTiming* timing = documentLoadTiming();
if (!timing)
return 0;
if (timing->hasCrossOriginRedirect || !timing->hasSameOriginAsPreviousDocument)
return 0;
return toIntegerMilliseconds(timing->unloadEventEnd);
}
unsigned long long PerformanceTiming::redirectStart() const
{
DocumentLoadTiming* timing = documentLoadTiming();
if (!timing)
return 0;
if (timing->hasCrossOriginRedirect)
return 0;
return toIntegerMilliseconds(timing->redirectStart);
}
unsigned long long PerformanceTiming::redirectEnd() const
{
DocumentLoadTiming* timing = documentLoadTiming();
if (!timing)
return 0;
if (timing->hasCrossOriginRedirect)
return 0;
return toIntegerMilliseconds(timing->redirectEnd);
}
unsigned long long PerformanceTiming::fetchStart() const
{
DocumentLoadTiming* timing = documentLoadTiming();
if (!timing)
return 0;
return toIntegerMilliseconds(timing->fetchStart);
}
unsigned long long PerformanceTiming::domainLookupStart() const
{
ResourceLoadTiming* timing = resourceLoadTiming();
if (!timing)
return fetchStart();
int dnsStart = timing->dnsStart;
if (dnsStart < 0)
return fetchStart();
return resourceLoadTimeRelativeToAbsolute(dnsStart);
}
unsigned long long PerformanceTiming::domainLookupEnd() const
{
ResourceLoadTiming* timing = resourceLoadTiming();
if (!timing)
return domainLookupStart();
int dnsEnd = timing->dnsEnd;
if (dnsEnd < 0)
return domainLookupStart();
return resourceLoadTimeRelativeToAbsolute(dnsEnd);
}
unsigned long long PerformanceTiming::connectStart() const
{
DocumentLoader* loader = documentLoader();
if (!loader)
return domainLookupEnd();
ResourceLoadTiming* timing = loader->response().resourceLoadTiming();
if (!timing)
return domainLookupEnd();
int connectStart = timing->connectStart;
if (connectStart < 0 || loader->response().connectionReused())
return domainLookupEnd();
if (timing->dnsEnd >= 0 && timing->dnsEnd > connectStart)
connectStart = timing->dnsEnd;
return resourceLoadTimeRelativeToAbsolute(connectStart);
}
unsigned long long PerformanceTiming::connectEnd() const
{
DocumentLoader* loader = documentLoader();
if (!loader)
return connectStart();
ResourceLoadTiming* timing = loader->response().resourceLoadTiming();
if (!timing)
return connectStart();
int connectEnd = timing->connectEnd;
if (connectEnd < 0 || loader->response().connectionReused())
return connectStart();
return resourceLoadTimeRelativeToAbsolute(connectEnd);
}
unsigned long long PerformanceTiming::secureConnectionStart() const
{
DocumentLoader* loader = documentLoader();
if (!loader)
return 0;
ResourceLoadTiming* timing = loader->response().resourceLoadTiming();
if (!timing)
return 0;
int sslStart = timing->sslStart;
if (sslStart < 0)
return 0;
return resourceLoadTimeRelativeToAbsolute(sslStart);
}
unsigned long long PerformanceTiming::requestStart() const
{
ResourceLoadTiming* timing = resourceLoadTiming();
if (!timing)
return connectEnd();
ASSERT(timing->sendStart >= 0);
return resourceLoadTimeRelativeToAbsolute(timing->sendStart);
}
unsigned long long PerformanceTiming::responseStart() const
{
ResourceLoadTiming* timing = resourceLoadTiming();
if (!timing)
return requestStart();
ASSERT(timing->receiveHeadersEnd >= 0);
return resourceLoadTimeRelativeToAbsolute(timing->receiveHeadersEnd);
}
unsigned long long PerformanceTiming::responseEnd() const
{
DocumentLoadTiming* timing = documentLoadTiming();
if (!timing)
return 0;
return toIntegerMilliseconds(timing->responseEnd);
}
unsigned long long PerformanceTiming::domLoading() const
{
const DocumentTiming* timing = documentTiming();
if (!timing)
return fetchStart();
return toIntegerMilliseconds(timing->domLoading);
}
unsigned long long PerformanceTiming::domInteractive() const
{
const DocumentTiming* timing = documentTiming();
if (!timing)
return 0;
return toIntegerMilliseconds(timing->domInteractive);
}
unsigned long long PerformanceTiming::domContentLoadedEventStart() const
{
const DocumentTiming* timing = documentTiming();
if (!timing)
return 0;
return toIntegerMilliseconds(timing->domContentLoadedEventStart);
}
unsigned long long PerformanceTiming::domContentLoadedEventEnd() const
{
const DocumentTiming* timing = documentTiming();
if (!timing)
return 0;
return toIntegerMilliseconds(timing->domContentLoadedEventEnd);
}
unsigned long long PerformanceTiming::domComplete() const
{
const DocumentTiming* timing = documentTiming();
if (!timing)
return 0;
return toIntegerMilliseconds(timing->domComplete);
}
unsigned long long PerformanceTiming::loadEventStart() const
{
DocumentLoadTiming* timing = documentLoadTiming();
if (!timing)
return 0;
return toIntegerMilliseconds(timing->loadEventStart);
}
unsigned long long PerformanceTiming::loadEventEnd() const
{
DocumentLoadTiming* timing = documentLoadTiming();
if (!timing)
return 0;
return toIntegerMilliseconds(timing->loadEventEnd);
}
DocumentLoader* PerformanceTiming::documentLoader() const
{
if (!m_frame)
return 0;
return m_frame->loader()->documentLoader();
}
const DocumentTiming* PerformanceTiming::documentTiming() const
{
if (!m_frame)
return 0;
Document* document = m_frame->document();
if (!document)
return 0;
return document->timing();
}
DocumentLoadTiming* PerformanceTiming::documentLoadTiming() const
{
DocumentLoader* loader = documentLoader();
if (!loader)
return 0;
return loader->timing();
}
ResourceLoadTiming* PerformanceTiming::resourceLoadTiming() const
{
DocumentLoader* loader = documentLoader();
if (!loader)
return 0;
return loader->response().resourceLoadTiming();
}
unsigned long long PerformanceTiming::resourceLoadTimeRelativeToAbsolute(int relativeSeconds) const
{
ASSERT(relativeSeconds >= 0);
ResourceLoadTiming* resourceTiming = resourceLoadTiming();
ASSERT(resourceTiming);
DocumentLoadTiming* documentTiming = documentLoadTiming();
ASSERT(documentTiming);
double baseTime = getPossiblySkewedTimeInKnownRange(resourceTiming->requestTime, documentTiming->fetchStart, documentTiming->responseEnd);
return toIntegerMilliseconds(baseTime) + relativeSeconds;
}
}
#endif // ENABLE(WEB_TIMING)