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// Copyright 2017 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef THIRD_PARTY_BLINK_RENDERER_CONTROLLER_OOM_INTERVENTION_IMPL_H_
#define THIRD_PARTY_BLINK_RENDERER_CONTROLLER_OOM_INTERVENTION_IMPL_H_
#include <memory>
#include "base/gtest_prod_util.h"
#include "base/task/single_thread_task_runner.h"
#include "base/types/pass_key.h"
#include "mojo/public/cpp/bindings/pending_receiver.h"
#include "mojo/public/cpp/bindings/pending_remote.h"
#include "mojo/public/cpp/bindings/receiver.h"
#include "mojo/public/cpp/bindings/remote.h"
#include "third_party/blink/public/common/oom_intervention/oom_intervention_types.h"
#include "third_party/blink/public/mojom/oom_intervention/oom_intervention.mojom-blink.h"
#include "third_party/blink/renderer/controller/controller_export.h"
#include "third_party/blink/renderer/controller/memory_usage_monitor.h"
#include "third_party/blink/renderer/core/page/scoped_page_pauser.h"
#include "third_party/blink/renderer/platform/timer.h"
namespace blink {
class OomInterventionImplTest;
// Implementation of OOM intervention. This pauses all pages by using
// ScopedPagePauser when near-OOM situation is detected.
// TODO(https://crbug.com/1051790): This class will need to be revisited
// if we start having an isolate per AgentGroupScheduler since it is
// associated with the single MainThreadIsolate.
class CONTROLLER_EXPORT OomInterventionImpl
: public mojom::blink::OomIntervention,
public MemoryUsageMonitor::Observer {
public:
static void BindReceiver(
scoped_refptr<base::SingleThreadTaskRunner> task_runner,
mojo::PendingReceiver<mojom::blink::OomIntervention> receiver);
explicit OomInterventionImpl(
base::PassKey<OomInterventionImpl> pass_key,
scoped_refptr<base::SingleThreadTaskRunner> task_runner);
~OomInterventionImpl() override;
// mojom::blink::OomIntervention:
void StartDetection(
mojo::PendingRemote<mojom::blink::OomInterventionHost> host,
mojom::blink::DetectionArgsPtr detection_args,
bool renderer_pause_enabled,
bool navigate_ads_enabled,
bool purge_v8_memory_enabled) override;
// MemoryUsageMonitor::Observer:
void OnMemoryPing(MemoryUsage) override;
protected:
explicit OomInterventionImpl(
scoped_refptr<base::SingleThreadTaskRunner> task_runner);
private:
FRIEND_TEST_ALL_PREFIXES(OomInterventionImplTest, DetectedAndDeclined);
FRIEND_TEST_ALL_PREFIXES(OomInterventionImplTest, StopWatchingAfterDetection);
FRIEND_TEST_ALL_PREFIXES(OomInterventionImplTest,
ContinueWatchingWithoutDetection);
FRIEND_TEST_ALL_PREFIXES(OomInterventionImplTest, V1DetectionAdsNavigation);
FRIEND_TEST_ALL_PREFIXES(OomInterventionImplTest, MojoDisconnection);
// Overridden by test.
virtual MemoryUsageMonitor& MemoryUsageMonitorInstance();
void Check(MemoryUsage);
void ReportMemoryStats(OomInterventionMetrics& current_memory);
void TimerFiredUMAReport(TimerBase*);
static void TriggerGC();
scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
mojom::blink::DetectionArgsPtr detection_args_;
mojo::Remote<mojom::blink::OomInterventionHost> host_;
bool renderer_pause_enabled_ = false;
bool navigate_ads_enabled_ = false;
bool purge_v8_memory_enabled_ = false;
std::unique_ptr<ScopedPagePauser> pauser_;
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_CONTROLLER_OOM_INTERVENTION_IMPL_H_
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