| // Copyright 2020 The Chromium OS 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 DIAGNOSTICS_CROS_HEALTHD_EVENTS_POWER_EVENTS_IMPL_H_ |
| #define DIAGNOSTICS_CROS_HEALTHD_EVENTS_POWER_EVENTS_IMPL_H_ |
| |
| #include <base/optional.h> |
| #include <mojo/public/cpp/bindings/interface_ptr_set.h> |
| #include <power_manager/proto_bindings/power_supply_properties.pb.h> |
| #include <power_manager/proto_bindings/suspend.pb.h> |
| |
| #include "diagnostics/cros_healthd/events/power_events.h" |
| #include "diagnostics/cros_healthd/system/context.h" |
| #include "mojo/cros_healthd_events.mojom.h" |
| |
| namespace diagnostics { |
| |
| // Production implementation of the PowerEvents interface. |
| class PowerEventsImpl final : public PowerEvents, |
| public PowerdAdapter::PowerObserver { |
| public: |
| explicit PowerEventsImpl(Context* context); |
| PowerEventsImpl(const PowerEventsImpl&) = delete; |
| PowerEventsImpl& operator=(const PowerEventsImpl&) = delete; |
| ~PowerEventsImpl() override; |
| |
| // PowerEvents overrides: |
| void AddObserver(chromeos::cros_healthd::mojom::CrosHealthdPowerObserverPtr |
| observer) override; |
| |
| private: |
| // Mapping between powerd's PowerSupplyProperties and events that PowerEvents |
| // cares about. |
| enum class PowerEventType { |
| // Energy consumption from an external power source has started. |
| kAcInserted, |
| // Energy consumption from an external power source has stopped. |
| kAcRemoved, |
| }; |
| |
| // PowerdAdapter::Observer overrides: |
| void OnPowerSupplyPollSignal( |
| const power_manager::PowerSupplyProperties& power_supply) override; |
| void OnSuspendImminentSignal( |
| const power_manager::SuspendImminent& suspend_imminent) override; |
| void OnDarkSuspendImminentSignal( |
| const power_manager::SuspendImminent& suspend_imminent) override; |
| void OnSuspendDoneSignal( |
| const power_manager::SuspendDone& suspend_done) override; |
| |
| // Common response to either a SuspendImminentSignal or |
| // DarkSuspendImminentSignal. |
| void OnAnySuspendImminentSignal(); |
| |
| // Checks to see if any observers are left. If not, removes this object from |
| // powerd's observers. |
| void StopObservingPowerdIfNecessary(); |
| |
| // Tracks whether or not this instance has added itself as an observer of |
| // powerd. |
| bool is_observing_powerd_ = false; |
| |
| // Most recent external power AC event, from powerd's last |
| // PowerSupplyPollSignal (updates every 30 seconds or when something changes |
| // in the power supply). |
| base::Optional<PowerEventType> external_power_ac_event_; |
| |
| // Each observer in |observers_| will be notified of any power event in the |
| // chromeos::cros_healthd::mojom::CrosHealthdPowerObserver interface. The |
| // InterfacePtrSet manages the lifetime of the endpoints, which are |
| // automatically destroyed and removed when the pipe they are bound to is |
| // destroyed. |
| mojo::InterfacePtrSet<chromeos::cros_healthd::mojom::CrosHealthdPowerObserver> |
| observers_; |
| |
| // Unowned pointer. Should outlive this instance. |
| Context* const context_ = nullptr; |
| }; |
| |
| } // namespace diagnostics |
| |
| #endif // DIAGNOSTICS_CROS_HEALTHD_EVENTS_POWER_EVENTS_IMPL_H_ |