97 lines
3.2 KiB
C++
97 lines
3.2 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "PerformanceResourceTiming.h"
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#include "mozilla/dom/PerformanceResourceTimingBinding.h"
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#include "mozilla/Unused.h"
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using namespace mozilla::dom;
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NS_IMPL_CYCLE_COLLECTION_INHERITED(PerformanceResourceTiming,
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PerformanceEntry,
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mTiming)
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NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN_INHERITED(PerformanceResourceTiming,
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PerformanceEntry)
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NS_IMPL_CYCLE_COLLECTION_TRACE_END
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NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(PerformanceResourceTiming)
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NS_INTERFACE_MAP_END_INHERITING(PerformanceEntry)
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NS_IMPL_ADDREF_INHERITED(PerformanceResourceTiming, PerformanceEntry)
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NS_IMPL_RELEASE_INHERITED(PerformanceResourceTiming, PerformanceEntry)
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PerformanceResourceTiming::PerformanceResourceTiming(PerformanceTiming* aPerformanceTiming,
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Performance* aPerformance,
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const nsAString& aName,
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nsIHttpChannel* aChannel)
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: PerformanceEntry(aPerformance, aName, NS_LITERAL_STRING("resource")),
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mTiming(aPerformanceTiming),
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mEncodedBodySize(0),
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mTransferSize(0),
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mDecodedBodySize(0)
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{
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MOZ_ASSERT(aPerformance, "Parent performance object should be provided");
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SetPropertiesFromChannel(aChannel);
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}
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void
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PerformanceResourceTiming::SetPropertiesFromChannel(nsIHttpChannel* aChannel)
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{
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if (!aChannel) {
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return;
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}
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nsAutoCString protocol;
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Unused << aChannel->GetProtocolVersion(protocol);
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SetNextHopProtocol(NS_ConvertUTF8toUTF16(protocol));
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uint64_t encodedBodySize = 0;
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Unused << aChannel->GetEncodedBodySize(&encodedBodySize);
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SetEncodedBodySize(encodedBodySize);
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uint64_t transferSize = 0;
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Unused << aChannel->GetTransferSize(&transferSize);
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SetTransferSize(transferSize);
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uint64_t decodedBodySize = 0;
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Unused << aChannel->GetDecodedBodySize(&decodedBodySize);
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if (decodedBodySize == 0) {
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decodedBodySize = encodedBodySize;
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}
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SetDecodedBodySize(decodedBodySize);
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}
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PerformanceResourceTiming::~PerformanceResourceTiming()
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{
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}
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DOMHighResTimeStamp
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PerformanceResourceTiming::StartTime() const
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{
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// Force the start time to be the earliest of:
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// - RedirectStart
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// - WorkerStart
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// - AsyncOpen
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// Ignore zero values. The RedirectStart and WorkerStart values
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// can come from earlier redirected channels prior to the AsyncOpen
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// time being recorded.
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DOMHighResTimeStamp redirect = mTiming->RedirectStartHighRes();
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redirect = redirect ? redirect : DBL_MAX;
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DOMHighResTimeStamp worker = mTiming->WorkerStartHighRes();
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worker = worker ? worker : DBL_MAX;
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DOMHighResTimeStamp asyncOpen = mTiming->AsyncOpenHighRes();
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return std::min(asyncOpen, std::min(redirect, worker));
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}
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JSObject*
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PerformanceResourceTiming::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
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{
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return PerformanceResourceTimingBinding::Wrap(aCx, this, aGivenProto);
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}
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