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// Copyright 2018 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_TIMER_ARC_TIMER_BRIDGE_H_
#define COMPONENTS_ARC_TIMER_ARC_TIMER_BRIDGE_H_
#include <map>
#include <memory>
#include <utility>
#include <vector>
#include "base/macros.h"
#include "base/memory/weak_ptr.h"
#include "base/optional.h"
#include "base/sequenced_task_runner.h"
#include "base/time/time.h"
#include "components/arc/mojom/timer.mojom.h"
#include "components/arc/session/connection_observer.h"
#include "components/keyed_service/core/keyed_service.h"
#include "mojo/public/cpp/bindings/binding.h"
class BrowserContextKeyedServiceFactory;
namespace content {
class BrowserContext;
} // namespace content
namespace arc {
class ArcBridgeService;
// Sets wake up timers / alarms based on calls from the instance.
class ArcTimerBridge : public KeyedService,
public ConnectionObserver<mojom::TimerInstance>,
public mojom::TimerHost {
public:
using TimerId = int32_t;
// Returns the factory instance for this class.
static BrowserContextKeyedServiceFactory* GetFactory();
// Returns singleton instance for the given BrowserContext,
// or nullptr if the browser |context| is not allowed to use ARC.
static ArcTimerBridge* GetForBrowserContext(content::BrowserContext* context);
static ArcTimerBridge* GetForBrowserContextForTesting(
content::BrowserContext* context);
ArcTimerBridge(content::BrowserContext* context,
ArcBridgeService* bridge_service);
~ArcTimerBridge() override;
// ConnectionObserver<mojom::TimerInstance>::Observer overrides.
void OnConnectionClosed() override;
// mojom::TimerHost overrides.
void CreateTimers(
std::vector<arc::mojom::CreateTimerRequestPtr> arc_timer_requests,
CreateTimersCallback callback) override;
void StartTimer(clockid_t clock_id,
base::TimeTicks absolute_expiration_time,
StartTimerCallback callback) override;
private:
// Deletes all timers.
void DeleteArcTimers();
// Callback for (powerd API) call made in |DeleteArcTimers|.
void OnDeleteArcTimers(bool result);
// Callback for powerd's D-Bus API called in |CreateTimers|.
void OnCreateArcTimers(std::vector<clockid_t> clock_ids,
CreateTimersCallback callback,
base::Optional<std::vector<TimerId>> timer_ids);
// Retrieves the timer id corresponding to |clock_id|. If a mapping exists in
// |timer_ids_| then returns an int32_t >= 0. Else returns base::nullopt.
base::Optional<TimerId> GetTimerId(clockid_t clock_id) const;
// Owned by ArcServiceManager.
ArcBridgeService* const arc_bridge_service_;
// Mapping of clock ids (coresponding to <sys/timerfd.h>) sent by the instance
// in |CreateTimers| to timer ids returned in |OnCreateArcTimersDBusMethod|.
std::map<clockid_t, TimerId> timer_ids_;
mojo::Binding<mojom::TimerHost> binding_;
base::WeakPtrFactory<ArcTimerBridge> weak_ptr_factory_{this};
DISALLOW_COPY_AND_ASSIGN(ArcTimerBridge);
};
} // namespace arc
#endif // COMPONENTS_ARC_TIMER_ARC_TIMER_BRIDGE_H_