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// Copyright 2016 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef COMPONENTS_ARC_METRICS_ARC_METRICS_SERVICE_H_
#define COMPONENTS_ARC_METRICS_ARC_METRICS_SERVICE_H_
#include <vector>
#include "base/macros.h"
#include "base/memory/weak_ptr.h"
#include "base/optional.h"
#include "base/threading/thread_checker.h"
#include "base/timer/timer.h"
#include "components/arc/common/metrics.mojom.h"
#include "components/arc/common/process.mojom.h"
#include "components/arc/instance_holder.h"
#include "components/keyed_service/core/keyed_service.h"
#include "mojo/public/cpp/bindings/binding.h"
namespace content {
class BrowserContext;
} // namespace content
namespace arc {
class ArcBridgeService;
// Collects information from other ArcServices and send UMA metrics.
class ArcMetricsService
: public KeyedService,
public InstanceHolder<mojom::MetricsInstance>::Observer,
public mojom::MetricsHost {
public:
// Returns singleton instance for the given BrowserContext,
// or nullptr if the browser |context| is not allowed to use ARC.
static ArcMetricsService* GetForBrowserContext(
content::BrowserContext* context);
ArcMetricsService(content::BrowserContext* context,
ArcBridgeService* bridge_service);
~ArcMetricsService() override;
// InstanceHolder<mojom::MetricsInstance>::Observer overrides.
void OnInstanceReady() override;
void OnInstanceClosed() override;
// Implementations for InstanceHolder<mojom::ProcessInstance>::Observer.
void OnProcessInstanceReady();
void OnProcessInstanceClosed();
// MetricsHost overrides.
void ReportBootProgress(std::vector<mojom::BootProgressEventPtr> events,
mojom::BootType boot_type) override;
private:
// Adapter to be able to also observe ProcessInstance events.
class ProcessObserver
: public InstanceHolder<mojom::ProcessInstance>::Observer {
public:
explicit ProcessObserver(ArcMetricsService* arc_metrics_service);
~ProcessObserver() override;
private:
// InstanceHolder<mojom::ProcessInstance>::Observer overrides.
void OnInstanceReady() override;
void OnInstanceClosed() override;
ArcMetricsService* arc_metrics_service_;
DISALLOW_COPY_AND_ASSIGN(ProcessObserver);
};
void RequestProcessList();
void ParseProcessList(std::vector<mojom::RunningAppProcessInfoPtr> processes);
// DBus callbacks.
void OnArcStartTimeRetrieved(base::Optional<base::TimeTicks> arc_start_time);
THREAD_CHECKER(thread_checker_);
ArcBridgeService* const arc_bridge_service_; // Owned by ArcServiceManager.
mojo::Binding<mojom::MetricsHost> binding_;
ProcessObserver process_observer_;
base::RepeatingTimer timer_;
base::TimeTicks arc_start_time_;
// Always keep this the last member of this class to make sure it's the
// first thing to be destructed.
base::WeakPtrFactory<ArcMetricsService> weak_ptr_factory_;
DISALLOW_COPY_AND_ASSIGN(ArcMetricsService);
};
} // namespace arc
#endif // COMPONENTS_ARC_METRICS_ARC_METRICS_SERVICE_H_
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