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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "PerformanceResourceTiming.h"
#include "mozilla/dom/PerformanceResourceTimingBinding.h"
#include "mozilla/Unused.h"
using namespace mozilla::dom;
NS_IMPL_CYCLE_COLLECTION_INHERITED(PerformanceResourceTiming,
PerformanceEntry,
mTiming)
NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN_INHERITED(PerformanceResourceTiming,
PerformanceEntry)
NS_IMPL_CYCLE_COLLECTION_TRACE_END
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(PerformanceResourceTiming)
NS_INTERFACE_MAP_END_INHERITING(PerformanceEntry)
NS_IMPL_ADDREF_INHERITED(PerformanceResourceTiming, PerformanceEntry)
NS_IMPL_RELEASE_INHERITED(PerformanceResourceTiming, PerformanceEntry)
PerformanceResourceTiming::PerformanceResourceTiming(PerformanceTiming* aPerformanceTiming,
Performance* aPerformance,
const nsAString& aName,
nsIHttpChannel* aChannel)
: PerformanceEntry(aPerformance, aName, NS_LITERAL_STRING("resource")),
mTiming(aPerformanceTiming),
mEncodedBodySize(0),
mTransferSize(0),
mDecodedBodySize(0)
{
MOZ_ASSERT(aPerformance, "Parent performance object should be provided");
SetPropertiesFromChannel(aChannel);
}
void
PerformanceResourceTiming::SetPropertiesFromChannel(nsIHttpChannel* aChannel)
{
if (!aChannel) {
return;
}
nsAutoCString protocol;
Unused << aChannel->GetProtocolVersion(protocol);
SetNextHopProtocol(NS_ConvertUTF8toUTF16(protocol));
uint64_t encodedBodySize = 0;
Unused << aChannel->GetEncodedBodySize(&encodedBodySize);
SetEncodedBodySize(encodedBodySize);
uint64_t transferSize = 0;
Unused << aChannel->GetTransferSize(&transferSize);
SetTransferSize(transferSize);
uint64_t decodedBodySize = 0;
Unused << aChannel->GetDecodedBodySize(&decodedBodySize);
if (decodedBodySize == 0) {
decodedBodySize = encodedBodySize;
}
SetDecodedBodySize(decodedBodySize);
}
PerformanceResourceTiming::~PerformanceResourceTiming()
{
}
DOMHighResTimeStamp
PerformanceResourceTiming::StartTime() const
{
// Force the start time to be the earliest of:
// - RedirectStart
// - WorkerStart
// - AsyncOpen
// Ignore zero values. The RedirectStart and WorkerStart values
// can come from earlier redirected channels prior to the AsyncOpen
// time being recorded.
DOMHighResTimeStamp redirect = mTiming->RedirectStartHighRes();
redirect = redirect ? redirect : DBL_MAX;
DOMHighResTimeStamp worker = mTiming->WorkerStartHighRes();
worker = worker ? worker : DBL_MAX;
DOMHighResTimeStamp asyncOpen = mTiming->AsyncOpenHighRes();
return std::min(asyncOpen, std::min(redirect, worker));
}
JSObject*
PerformanceResourceTiming::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
{
return PerformanceResourceTimingBinding::Wrap(aCx, this, aGivenProto);
}
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