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// Copyright 2023 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROMEOS_ASH_COMPONENTS_TELEMETRY_EXTENSION_ROUTINES_ROUTINE_EVENTS_FORWARDER_H_
#define CHROMEOS_ASH_COMPONENTS_TELEMETRY_EXTENSION_ROUTINES_ROUTINE_EVENTS_FORWARDER_H_
#include "chromeos/ash/services/cros_healthd/public/mojom/cros_healthd_routines.mojom.h"
#include "chromeos/crosapi/mojom/telemetry_diagnostic_routine_service.mojom.h"
#include "mojo/public/cpp/bindings/pending_remote.h"
#include "mojo/public/cpp/bindings/remote.h"
namespace ash {
// A class that handles an Routine observer connection. For each subscription to
// a routine's lifecycle, and instance of this object is created. It handles the
// two necessary mojom connections for observing lifecycle events:
// - The `mojo::Remote<crosapi::mojom::TelemetryDiagnosticRoutineObserver>`
// which holds
// a connection with crosapi. As soon as an event is triggered from
// cros_healthd, it should be forwarded to this remote.
// - The `mojo::Receiver<cros_healthd::mojom::RoutineObserver>`, which holds
// a connection with cros_healthd. The `OnRoutineStateChange` method is
// invoked whenever cros_healthd monitors an event.
//
// The connection is "alive" while both connections with cros_healthd and
// crosapi are open. If one of them is closed, we also close the other open
// connection and this object can be deleted.
class CrosHealthdRoutineEventsForwarder
: public cros_healthd::mojom::RoutineObserver {
public:
explicit CrosHealthdRoutineEventsForwarder(
mojo::PendingRemote<crosapi::mojom::TelemetryDiagnosticRoutineObserver>
observer);
CrosHealthdRoutineEventsForwarder(const CrosHealthdRoutineEventsForwarder&) =
delete;
CrosHealthdRoutineEventsForwarder& operator=(
const CrosHealthdRoutineEventsForwarder&) = delete;
~CrosHealthdRoutineEventsForwarder() override;
// `RoutineObserver`:
void OnRoutineStateChange(
cros_healthd::mojom::RoutineStatePtr state) override;
mojo::Remote<crosapi::mojom::TelemetryDiagnosticRoutineObserver>& GetRemote();
private:
mojo::Remote<crosapi::mojom::TelemetryDiagnosticRoutineObserver> remote_;
};
} // namespace ash
#endif // CHROMEOS_ASH_COMPONENTS_TELEMETRY_EXTENSION_ROUTINES_ROUTINE_EVENTS_FORWARDER_H_
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