e19e7123c5
We attach it to WorkerPrivate and DOMNavigationTiming so it will be re-used when it should. WorkerPrivate is used in the Performance APIs, Performance Storage Worker, and Event. DOMNavigationTiming is used only in the Performance APIs, but the crucial part is that when the individual DOMNavigationTiming object is re-used, so will the context seed. This in particular came up with the nav2_test_document_open.html Web Platform Test which illustrated the fact that even if you .open() a new document, the performance navigation data is not supposed to change. MozReview-Commit-ID: GIv6biEo2jY
60 lines
1.5 KiB
C++
60 lines
1.5 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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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 "PerformanceWorker.h"
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#include "mozilla/dom/DOMPrefs.h"
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#include "mozilla/dom/WorkerPrivate.h"
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namespace mozilla {
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namespace dom {
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PerformanceWorker::PerformanceWorker(WorkerPrivate* aWorkerPrivate)
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: mWorkerPrivate(aWorkerPrivate)
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{
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mWorkerPrivate->AssertIsOnWorkerThread();
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}
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PerformanceWorker::~PerformanceWorker()
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{
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mWorkerPrivate->AssertIsOnWorkerThread();
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}
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void
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PerformanceWorker::InsertUserEntry(PerformanceEntry* aEntry)
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{
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if (DOMPrefs::PerformanceLoggingEnabled()) {
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nsAutoCString uri;
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nsCOMPtr<nsIURI> scriptURI = mWorkerPrivate->GetResolvedScriptURI();
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if (!scriptURI || NS_FAILED(scriptURI->GetHost(uri))) {
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// If we have no URI, just put in "none".
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uri.AssignLiteral("none");
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}
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Performance::LogEntry(aEntry, uri);
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}
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Performance::InsertUserEntry(aEntry);
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}
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TimeStamp
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PerformanceWorker::CreationTimeStamp() const
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{
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return mWorkerPrivate->CreationTimeStamp();
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}
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DOMHighResTimeStamp
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PerformanceWorker::CreationTime() const
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{
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return mWorkerPrivate->CreationTime();
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}
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uint64_t
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PerformanceWorker::GetRandomTimelineSeed()
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{
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return mWorkerPrivate->GetRandomTimelineSeed();
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}
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} // dom namespace
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} // mozilla namespace
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