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/*
* Copyright (C) 2012 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.
* * 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.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
* OWNER OR 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.
*/
#include "config.h"
#include "core/timing/PerformanceResourceTiming.h"
#include "core/dom/Document.h"
#include "core/loader/DocumentLoadTiming.h"
#include "core/loader/DocumentLoader.h"
#include "core/timing/ResourceTimingInfo.h"
#include "platform/network/ResourceRequest.h"
#include "platform/network/ResourceResponse.h"
namespace blink {
static double monotonicTimeToDocumentMilliseconds(Document* document, double seconds)
{
ASSERT(seconds >= 0.0);
return document->loader()->timing()->monotonicTimeToZeroBasedDocumentTime(seconds) * 1000.0;
}
PerformanceResourceTiming::PerformanceResourceTiming(const ResourceTimingInfo& info, Document* requestingDocument, double startTime, double lastRedirectEndTime, bool allowTimingDetails, bool allowRedirectDetails)
: PerformanceEntry(info.initialRequest().url().string(), "resource", monotonicTimeToDocumentMilliseconds(requestingDocument, startTime), monotonicTimeToDocumentMilliseconds(requestingDocument, info.loadFinishTime()))
, m_initiatorType(info.initiatorType())
, m_timing(info.finalResponse().resourceLoadTiming())
, m_lastRedirectEndTime(lastRedirectEndTime)
, m_finishTime(info.loadFinishTime())
, m_didReuseConnection(info.finalResponse().connectionReused())
, m_allowTimingDetails(allowTimingDetails)
, m_allowRedirectDetails(allowRedirectDetails)
, m_requestingDocument(requestingDocument)
{
}
PerformanceResourceTiming::~PerformanceResourceTiming()
{
}
AtomicString PerformanceResourceTiming::initiatorType() const
{
return m_initiatorType;
}
double PerformanceResourceTiming::redirectStart() const
{
if (!m_lastRedirectEndTime || !m_allowRedirectDetails)
return 0.0;
return PerformanceEntry::startTime();
}
double PerformanceResourceTiming::redirectEnd() const
{
if (!m_lastRedirectEndTime || !m_allowRedirectDetails)
return 0.0;
return monotonicTimeToDocumentMilliseconds(m_requestingDocument.get(), m_lastRedirectEndTime);
}
double PerformanceResourceTiming::fetchStart() const
{
if (m_lastRedirectEndTime) {
// FIXME: ASSERT(m_timing) should be in constructor once timeticks of
// AppCache is exposed from chrome network stack, crbug/251100
ASSERT(m_timing);
return monotonicTimeToDocumentMilliseconds(m_requestingDocument.get(), m_timing->requestTime);
}
return PerformanceEntry::startTime();
}
double PerformanceResourceTiming::domainLookupStart() const
{
if (!m_allowTimingDetails)
return 0.0;
if (!m_timing || m_timing->dnsStart == 0.0)
return fetchStart();
return monotonicTimeToDocumentMilliseconds(m_requestingDocument.get(), m_timing->dnsStart);
}
double PerformanceResourceTiming::domainLookupEnd() const
{
if (!m_allowTimingDetails)
return 0.0;
if (!m_timing || m_timing->dnsEnd == 0.0)
return domainLookupStart();
return monotonicTimeToDocumentMilliseconds(m_requestingDocument.get(), m_timing->dnsEnd);
}
double PerformanceResourceTiming::connectStart() const
{
if (!m_allowTimingDetails)
return 0.0;
// connectStart will be zero when a network request is not made.
if (!m_timing || m_timing->connectStart == 0.0 || m_didReuseConnection)
return domainLookupEnd();
// connectStart includes any DNS time, so we may need to trim that off.
double connectStart = m_timing->connectStart;
if (m_timing->dnsEnd > 0.0)
connectStart = m_timing->dnsEnd;
return monotonicTimeToDocumentMilliseconds(m_requestingDocument.get(), connectStart);
}
double PerformanceResourceTiming::connectEnd() const
{
if (!m_allowTimingDetails)
return 0.0;
// connectStart will be zero when a network request is not made.
if (!m_timing || m_timing->connectEnd == 0.0 || m_didReuseConnection)
return connectStart();
return monotonicTimeToDocumentMilliseconds(m_requestingDocument.get(), m_timing->connectEnd);
}
double PerformanceResourceTiming::secureConnectionStart() const
{
if (!m_allowTimingDetails)
return 0.0;
if (!m_timing || m_timing->sslStart == 0.0) // Secure connection not negotiated.
return 0.0;
return monotonicTimeToDocumentMilliseconds(m_requestingDocument.get(), m_timing->sslStart);
}
double PerformanceResourceTiming::requestStart() const
{
if (!m_allowTimingDetails)
return 0.0;
if (!m_timing)
return connectEnd();
return monotonicTimeToDocumentMilliseconds(m_requestingDocument.get(), m_timing->sendStart);
}
double PerformanceResourceTiming::responseStart() const
{
if (!m_allowTimingDetails)
return 0.0;
if (!m_timing)
return requestStart();
// FIXME: This number isn't exactly correct. See the notes in PerformanceTiming::responseStart().
return monotonicTimeToDocumentMilliseconds(m_requestingDocument.get(), m_timing->receiveHeadersEnd);
}
double PerformanceResourceTiming::responseEnd() const
{
if (!m_finishTime)
return responseStart();
return monotonicTimeToDocumentMilliseconds(m_requestingDocument.get(), m_finishTime);
}
void PerformanceResourceTiming::trace(Visitor* visitor)
{
visitor->trace(m_requestingDocument);
PerformanceEntry::trace(visitor);
}
} // namespace blink
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