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32 #include "core/timing/PerformanceTiming.h"
34 #include "core/dom/Document.h"
35 #include "core/dom/DocumentTiming.h"
36 #include "core/frame/LocalFrame.h"
37 #include "core/loader/DocumentLoadTiming.h"
38 #include "core/loader/DocumentLoader.h"
39 #include "core/loader/FrameLoader.h"
40 #include "platform/network/ResourceLoadTiming.h"
41 #include "platform/network/ResourceResponse.h"
45 static unsigned long long toIntegerMilliseconds(double seconds)
48 return static_cast<unsigned long long>(seconds * 1000.0);
51 PerformanceTiming::PerformanceTiming(LocalFrame* frame)
52 : DOMWindowProperty(frame)
54 ScriptWrappable::init(this);
57 unsigned long long PerformanceTiming::navigationStart() const
59 DocumentLoadTiming* timing = documentLoadTiming();
63 return monotonicTimeToIntegerMilliseconds(timing->navigationStart());
66 unsigned long long PerformanceTiming::unloadEventStart() const
68 DocumentLoadTiming* timing = documentLoadTiming();
72 if (timing->hasCrossOriginRedirect() || !timing->hasSameOriginAsPreviousDocument())
75 return monotonicTimeToIntegerMilliseconds(timing->unloadEventStart());
78 unsigned long long PerformanceTiming::unloadEventEnd() const
80 DocumentLoadTiming* timing = documentLoadTiming();
84 if (timing->hasCrossOriginRedirect() || !timing->hasSameOriginAsPreviousDocument())
87 return monotonicTimeToIntegerMilliseconds(timing->unloadEventEnd());
90 unsigned long long PerformanceTiming::redirectStart() const
92 DocumentLoadTiming* timing = documentLoadTiming();
96 if (timing->hasCrossOriginRedirect())
99 return monotonicTimeToIntegerMilliseconds(timing->redirectStart());
102 unsigned long long PerformanceTiming::redirectEnd() const
104 DocumentLoadTiming* timing = documentLoadTiming();
108 if (timing->hasCrossOriginRedirect())
111 return monotonicTimeToIntegerMilliseconds(timing->redirectEnd());
114 unsigned long long PerformanceTiming::fetchStart() const
116 DocumentLoadTiming* timing = documentLoadTiming();
120 return monotonicTimeToIntegerMilliseconds(timing->fetchStart());
123 unsigned long long PerformanceTiming::domainLookupStart() const
125 ResourceLoadTiming* timing = resourceLoadTiming();
129 // This will be zero when a DNS request is not performed.
130 // Rather than exposing a special value that indicates no DNS, we "backfill" with fetchStart.
131 double dnsStart = timing->dnsStart;
135 return monotonicTimeToIntegerMilliseconds(dnsStart);
138 unsigned long long PerformanceTiming::domainLookupEnd() const
140 ResourceLoadTiming* timing = resourceLoadTiming();
142 return domainLookupStart();
144 // This will be zero when a DNS request is not performed.
145 // Rather than exposing a special value that indicates no DNS, we "backfill" with domainLookupStart.
146 double dnsEnd = timing->dnsEnd;
148 return domainLookupStart();
150 return monotonicTimeToIntegerMilliseconds(dnsEnd);
153 unsigned long long PerformanceTiming::connectStart() const
155 DocumentLoader* loader = documentLoader();
157 return domainLookupEnd();
159 ResourceLoadTiming* timing = loader->response().resourceLoadTiming();
161 return domainLookupEnd();
163 // connectStart will be zero when a network request is not made.
164 // Rather than exposing a special value that indicates no new connection, we "backfill" with domainLookupEnd.
165 double connectStart = timing->connectStart;
166 if (connectStart == 0.0 || loader->response().connectionReused())
167 return domainLookupEnd();
169 // ResourceLoadTiming's connect phase includes DNS, however Navigation Timing's
170 // connect phase should not. So if there is DNS time, trim it from the start.
171 if (timing->dnsEnd > 0.0 && timing->dnsEnd > connectStart)
172 connectStart = timing->dnsEnd;
174 return monotonicTimeToIntegerMilliseconds(connectStart);
177 unsigned long long PerformanceTiming::connectEnd() const
179 DocumentLoader* loader = documentLoader();
181 return connectStart();
183 ResourceLoadTiming* timing = loader->response().resourceLoadTiming();
185 return connectStart();
187 // connectEnd will be zero when a network request is not made.
188 // Rather than exposing a special value that indicates no new connection, we "backfill" with connectStart.
189 double connectEnd = timing->connectEnd;
190 if (connectEnd == 0.0 || loader->response().connectionReused())
191 return connectStart();
193 return monotonicTimeToIntegerMilliseconds(connectEnd);
196 unsigned long long PerformanceTiming::secureConnectionStart() const
198 DocumentLoader* loader = documentLoader();
202 ResourceLoadTiming* timing = loader->response().resourceLoadTiming();
206 double sslStart = timing->sslStart;
210 return monotonicTimeToIntegerMilliseconds(sslStart);
213 unsigned long long PerformanceTiming::requestStart() const
215 ResourceLoadTiming* timing = resourceLoadTiming();
217 if (!timing || timing->sendStart == 0.0)
220 return monotonicTimeToIntegerMilliseconds(timing->sendStart);
223 unsigned long long PerformanceTiming::responseStart() const
225 ResourceLoadTiming* timing = resourceLoadTiming();
226 if (!timing || timing->receiveHeadersEnd == 0.0)
227 return requestStart();
229 // FIXME: Response start needs to be the time of the first received byte.
230 // However, the ResourceLoadTiming API currently only supports the time
231 // the last header byte was received. For many responses with reasonable
232 // sized cookies, the HTTP headers fit into a single packet so this time
233 // is basically equivalent. But for some responses, particularly those with
234 // headers larger than a single packet, this time will be too late.
235 return monotonicTimeToIntegerMilliseconds(timing->receiveHeadersEnd);
238 unsigned long long PerformanceTiming::responseEnd() const
240 DocumentLoadTiming* timing = documentLoadTiming();
244 return monotonicTimeToIntegerMilliseconds(timing->responseEnd());
247 unsigned long long PerformanceTiming::domLoading() const
249 const DocumentTiming* timing = documentTiming();
253 return monotonicTimeToIntegerMilliseconds(timing->domLoading);
256 unsigned long long PerformanceTiming::domInteractive() const
258 const DocumentTiming* timing = documentTiming();
262 return monotonicTimeToIntegerMilliseconds(timing->domInteractive);
265 unsigned long long PerformanceTiming::domContentLoadedEventStart() const
267 const DocumentTiming* timing = documentTiming();
271 return monotonicTimeToIntegerMilliseconds(timing->domContentLoadedEventStart);
274 unsigned long long PerformanceTiming::domContentLoadedEventEnd() const
276 const DocumentTiming* timing = documentTiming();
280 return monotonicTimeToIntegerMilliseconds(timing->domContentLoadedEventEnd);
283 unsigned long long PerformanceTiming::domComplete() const
285 const DocumentTiming* timing = documentTiming();
289 return monotonicTimeToIntegerMilliseconds(timing->domComplete);
292 unsigned long long PerformanceTiming::loadEventStart() const
294 DocumentLoadTiming* timing = documentLoadTiming();
298 return monotonicTimeToIntegerMilliseconds(timing->loadEventStart());
301 unsigned long long PerformanceTiming::loadEventEnd() const
303 DocumentLoadTiming* timing = documentLoadTiming();
307 return monotonicTimeToIntegerMilliseconds(timing->loadEventEnd());
310 DocumentLoader* PerformanceTiming::documentLoader() const
315 return m_frame->loader().documentLoader();
318 const DocumentTiming* PerformanceTiming::documentTiming() const
323 Document* document = m_frame->document();
327 return &document->timing();
330 DocumentLoadTiming* PerformanceTiming::documentLoadTiming() const
332 DocumentLoader* loader = documentLoader();
336 return loader->timing();
339 ResourceLoadTiming* PerformanceTiming::resourceLoadTiming() const
341 DocumentLoader* loader = documentLoader();
345 return loader->response().resourceLoadTiming();
348 unsigned long long PerformanceTiming::monotonicTimeToIntegerMilliseconds(double monotonicSeconds) const
350 ASSERT(monotonicSeconds >= 0);
351 const DocumentLoadTiming* timing = documentLoadTiming();
355 return toIntegerMilliseconds(timing->monotonicTimeToPseudoWallTime(monotonicSeconds));