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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)
56 unsigned long long PerformanceTiming::navigationStart() const
58 DocumentLoadTiming* timing = documentLoadTiming();
62 return monotonicTimeToIntegerMilliseconds(timing->navigationStart());
65 unsigned long long PerformanceTiming::unloadEventStart() const
67 DocumentLoadTiming* timing = documentLoadTiming();
71 if (timing->hasCrossOriginRedirect() || !timing->hasSameOriginAsPreviousDocument())
74 return monotonicTimeToIntegerMilliseconds(timing->unloadEventStart());
77 unsigned long long PerformanceTiming::unloadEventEnd() const
79 DocumentLoadTiming* timing = documentLoadTiming();
83 if (timing->hasCrossOriginRedirect() || !timing->hasSameOriginAsPreviousDocument())
86 return monotonicTimeToIntegerMilliseconds(timing->unloadEventEnd());
89 unsigned long long PerformanceTiming::redirectStart() const
91 DocumentLoadTiming* timing = documentLoadTiming();
95 if (timing->hasCrossOriginRedirect())
98 return monotonicTimeToIntegerMilliseconds(timing->redirectStart());
101 unsigned long long PerformanceTiming::redirectEnd() const
103 DocumentLoadTiming* timing = documentLoadTiming();
107 if (timing->hasCrossOriginRedirect())
110 return monotonicTimeToIntegerMilliseconds(timing->redirectEnd());
113 unsigned long long PerformanceTiming::fetchStart() const
115 DocumentLoadTiming* timing = documentLoadTiming();
119 return monotonicTimeToIntegerMilliseconds(timing->fetchStart());
122 unsigned long long PerformanceTiming::domainLookupStart() const
124 ResourceLoadTiming* timing = resourceLoadTiming();
128 // This will be zero when a DNS request is not performed.
129 // Rather than exposing a special value that indicates no DNS, we "backfill" with fetchStart.
130 double dnsStart = timing->dnsStart;
134 return monotonicTimeToIntegerMilliseconds(dnsStart);
137 unsigned long long PerformanceTiming::domainLookupEnd() const
139 ResourceLoadTiming* timing = resourceLoadTiming();
141 return domainLookupStart();
143 // This will be zero when a DNS request is not performed.
144 // Rather than exposing a special value that indicates no DNS, we "backfill" with domainLookupStart.
145 double dnsEnd = timing->dnsEnd;
147 return domainLookupStart();
149 return monotonicTimeToIntegerMilliseconds(dnsEnd);
152 unsigned long long PerformanceTiming::connectStart() const
154 DocumentLoader* loader = documentLoader();
156 return domainLookupEnd();
158 ResourceLoadTiming* timing = loader->response().resourceLoadTiming();
160 return domainLookupEnd();
162 // connectStart will be zero when a network request is not made.
163 // Rather than exposing a special value that indicates no new connection, we "backfill" with domainLookupEnd.
164 double connectStart = timing->connectStart;
165 if (connectStart == 0.0 || loader->response().connectionReused())
166 return domainLookupEnd();
168 // ResourceLoadTiming's connect phase includes DNS, however Navigation Timing's
169 // connect phase should not. So if there is DNS time, trim it from the start.
170 if (timing->dnsEnd > 0.0 && timing->dnsEnd > connectStart)
171 connectStart = timing->dnsEnd;
173 return monotonicTimeToIntegerMilliseconds(connectStart);
176 unsigned long long PerformanceTiming::connectEnd() const
178 DocumentLoader* loader = documentLoader();
180 return connectStart();
182 ResourceLoadTiming* timing = loader->response().resourceLoadTiming();
184 return connectStart();
186 // connectEnd will be zero when a network request is not made.
187 // Rather than exposing a special value that indicates no new connection, we "backfill" with connectStart.
188 double connectEnd = timing->connectEnd;
189 if (connectEnd == 0.0 || loader->response().connectionReused())
190 return connectStart();
192 return monotonicTimeToIntegerMilliseconds(connectEnd);
195 unsigned long long PerformanceTiming::secureConnectionStart() const
197 DocumentLoader* loader = documentLoader();
201 ResourceLoadTiming* timing = loader->response().resourceLoadTiming();
205 double sslStart = timing->sslStart;
209 return monotonicTimeToIntegerMilliseconds(sslStart);
212 unsigned long long PerformanceTiming::requestStart() const
214 ResourceLoadTiming* timing = resourceLoadTiming();
216 if (!timing || timing->sendStart == 0.0)
219 return monotonicTimeToIntegerMilliseconds(timing->sendStart);
222 unsigned long long PerformanceTiming::responseStart() const
224 ResourceLoadTiming* timing = resourceLoadTiming();
225 if (!timing || timing->receiveHeadersEnd == 0.0)
226 return requestStart();
228 // FIXME: Response start needs to be the time of the first received byte.
229 // However, the ResourceLoadTiming API currently only supports the time
230 // the last header byte was received. For many responses with reasonable
231 // sized cookies, the HTTP headers fit into a single packet so this time
232 // is basically equivalent. But for some responses, particularly those with
233 // headers larger than a single packet, this time will be too late.
234 return monotonicTimeToIntegerMilliseconds(timing->receiveHeadersEnd);
237 unsigned long long PerformanceTiming::responseEnd() const
239 DocumentLoadTiming* timing = documentLoadTiming();
243 return monotonicTimeToIntegerMilliseconds(timing->responseEnd());
246 unsigned long long PerformanceTiming::domLoading() const
248 const DocumentTiming* timing = documentTiming();
252 return monotonicTimeToIntegerMilliseconds(timing->domLoading);
255 unsigned long long PerformanceTiming::domInteractive() const
257 const DocumentTiming* timing = documentTiming();
261 return monotonicTimeToIntegerMilliseconds(timing->domInteractive);
264 unsigned long long PerformanceTiming::domContentLoadedEventStart() const
266 const DocumentTiming* timing = documentTiming();
270 return monotonicTimeToIntegerMilliseconds(timing->domContentLoadedEventStart);
273 unsigned long long PerformanceTiming::domContentLoadedEventEnd() const
275 const DocumentTiming* timing = documentTiming();
279 return monotonicTimeToIntegerMilliseconds(timing->domContentLoadedEventEnd);
282 unsigned long long PerformanceTiming::domComplete() const
284 const DocumentTiming* timing = documentTiming();
288 return monotonicTimeToIntegerMilliseconds(timing->domComplete);
291 unsigned long long PerformanceTiming::loadEventStart() const
293 DocumentLoadTiming* timing = documentLoadTiming();
297 return monotonicTimeToIntegerMilliseconds(timing->loadEventStart());
300 unsigned long long PerformanceTiming::loadEventEnd() const
302 DocumentLoadTiming* timing = documentLoadTiming();
306 return monotonicTimeToIntegerMilliseconds(timing->loadEventEnd());
309 DocumentLoader* PerformanceTiming::documentLoader() const
314 return m_frame->loader().documentLoader();
317 const DocumentTiming* PerformanceTiming::documentTiming() const
322 Document* document = m_frame->document();
326 return &document->timing();
329 DocumentLoadTiming* PerformanceTiming::documentLoadTiming() const
331 DocumentLoader* loader = documentLoader();
335 return loader->timing();
338 ResourceLoadTiming* PerformanceTiming::resourceLoadTiming() const
340 DocumentLoader* loader = documentLoader();
344 return loader->response().resourceLoadTiming();
347 unsigned long long PerformanceTiming::monotonicTimeToIntegerMilliseconds(double monotonicSeconds) const
349 ASSERT(monotonicSeconds >= 0);
350 const DocumentLoadTiming* timing = documentLoadTiming();
354 return toIntegerMilliseconds(timing->monotonicTimeToPseudoWallTime(monotonicSeconds));
357 void PerformanceTiming::trace(Visitor* visitor)
359 DOMWindowProperty::trace(visitor);