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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 "PerformanceStorageWorker.h"
#include "Performance.h"
#include "PerformanceResourceTiming.h"
#include "PerformanceTiming.h"
#include "mozilla/dom/WorkerRef.h"
#include "mozilla/dom/WorkerRunnable.h"
#include "mozilla/dom/WorkerScope.h"
namespace mozilla::dom {
class PerformanceProxyData {
public:
PerformanceProxyData(UniquePtr<PerformanceTimingData>&& aData,
const nsAString& aInitiatorType,
const nsAString& aEntryName)
: mData(std::move(aData)),
mInitiatorType(aInitiatorType),
mEntryName(aEntryName) {
MOZ_RELEASE_ASSERT(mData);
}
UniquePtr<PerformanceTimingData> mData; // always non-null
nsString mInitiatorType;
nsString mEntryName;
};
namespace {
// Here we use control runnable because this code must be executed also when in
// a sync event loop
class PerformanceEntryAdder final : public WorkerControlRunnable {
public:
PerformanceEntryAdder(WorkerPrivate* aWorkerPrivate,
PerformanceStorageWorker* aStorage,
UniquePtr<PerformanceProxyData>&& aData)
: WorkerControlRunnable(aWorkerPrivate, WorkerThreadUnchangedBusyCount),
mStorage(aStorage),
mData(std::move(aData)) {}
bool WorkerRun(JSContext* aCx, WorkerPrivate* aWorkerPrivate) override {
mStorage->AddEntryOnWorker(std::move(mData));
return true;
}
nsresult Cancel() override {
mStorage->ShutdownOnWorker();
return WorkerRunnable::Cancel();
}
bool PreDispatch(WorkerPrivate* aWorkerPrivate) override { return true; }
void PostDispatch(WorkerPrivate* aWorkerPrivate,
bool aDispatchResult) override {}
private:
RefPtr<PerformanceStorageWorker> mStorage;
UniquePtr<PerformanceProxyData> mData;
};
} // namespace
/* static */
already_AddRefed<PerformanceStorageWorker> PerformanceStorageWorker::Create(
WorkerPrivate* aWorkerPrivate) {
MOZ_ASSERT(aWorkerPrivate);
aWorkerPrivate->AssertIsOnWorkerThread();
RefPtr<PerformanceStorageWorker> storage = new PerformanceStorageWorker();
MutexAutoLock lock(storage->mMutex); // for thread-safety analysis
storage->mWorkerRef = WeakWorkerRef::Create(
aWorkerPrivate, [storage]() { storage->ShutdownOnWorker(); });
// PerformanceStorageWorker is created at the creation time of the worker.
MOZ_ASSERT(storage->mWorkerRef);
return storage.forget();
}
PerformanceStorageWorker::PerformanceStorageWorker()
: mMutex("PerformanceStorageWorker::mMutex") {}
PerformanceStorageWorker::~PerformanceStorageWorker() = default;
void PerformanceStorageWorker::AddEntry(nsIHttpChannel* aChannel,
nsITimedChannel* aTimedChannel) {
MOZ_ASSERT(NS_IsMainThread());
MutexAutoLock lock(mMutex);
if (!mWorkerRef) {
return;
}
// If we have mWorkerRef, we haven't received the WorkerRef notification and
// we haven't yet call ShutdownOnWorker, which uses the mutex.
WorkerPrivate* workerPrivate = mWorkerRef->GetUnsafePrivate();
MOZ_ASSERT(workerPrivate);
nsAutoString initiatorType;
nsAutoString entryName;
UniquePtr<PerformanceTimingData> performanceTimingData(
PerformanceTimingData::Create(aTimedChannel, aChannel, 0, initiatorType,
entryName));
if (!performanceTimingData) {
return;
}
UniquePtr<PerformanceProxyData> data(new PerformanceProxyData(
std::move(performanceTimingData), initiatorType, entryName));
RefPtr<PerformanceEntryAdder> r =
new PerformanceEntryAdder(workerPrivate, this, std::move(data));
Unused << NS_WARN_IF(!r->Dispatch());
}
void PerformanceStorageWorker::AddEntry(
const nsString& aEntryName, const nsString& aInitiatorType,
UniquePtr<PerformanceTimingData>&& aData) {
MOZ_ASSERT(!NS_IsMainThread());
if (!aData) {
return;
}
UniquePtr<PerformanceProxyData> data = MakeUnique<PerformanceProxyData>(
std::move(aData), aInitiatorType, aEntryName);
AddEntryOnWorker(std::move(data));
}
void PerformanceStorageWorker::ShutdownOnWorker() {
MutexAutoLock lock(mMutex);
if (!mWorkerRef) {
return;
}
MOZ_ASSERT(!NS_IsMainThread());
mWorkerRef = nullptr;
}
void PerformanceStorageWorker::AddEntryOnWorker(
UniquePtr<PerformanceProxyData>&& aData) {
RefPtr<Performance> performance;
UniquePtr<PerformanceProxyData> data = std::move(aData);
{
MutexAutoLock lock(mMutex);
if (!mWorkerRef) {
return;
}
// We must have the workerPrivate because it is available until a
// notification is received by WorkerRef and we use mutex to make the code
// protected.
WorkerPrivate* workerPrivate = mWorkerRef->GetPrivate();
MOZ_ASSERT(workerPrivate);
WorkerGlobalScope* scope = workerPrivate->GlobalScope();
performance = scope->GetPerformance();
}
if (NS_WARN_IF(!performance)) {
return;
}
RefPtr<PerformanceResourceTiming> performanceEntry =
new PerformanceResourceTiming(std::move(data->mData), performance,
data->mEntryName);
performanceEntry->SetInitiatorType(data->mInitiatorType);
performance->InsertResourceEntry(performanceEntry);
}
} // namespace mozilla::dom
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