src/bringup/bin/critical-services/monitor.h

// Copyright 2021 The Fuchsia Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include <fidl/fuchsia.power.button/cpp/wire.h>
#include <zircon/compiler.h>

#ifndef SRC_BRINGUP_BIN_CRITICAL_SERVICES_MONITOR_H_
#define SRC_BRINGUP_BIN_CRITICAL_SERVICES_MONITOR_H_

namespace pwrbtn {

class PowerButtonMonitor : public fidl::WireServer<fuchsia_power_button::Monitor> {
  using Action = fuchsia_power_button::wire::Action;
  using ButtonEvent = fuchsia_power_button::wire::PowerButtonEvent;

 public:
  explicit PowerButtonMonitor(async_dispatcher_t* dispatcher) : dispatcher_(dispatcher) {}
  fidl::ProtocolHandler<fuchsia_power_button::Monitor> Publish();

  void GetAction(GetActionCompleter::Sync& completer) override;
  void SetAction(SetActionRequestView view, SetActionCompleter::Sync& completer) override;

  // Called when the power button is pressed or released.
  zx_status_t SendButtonEvent(ButtonEvent event);

  // Called when the power button is pressed.
  zx_status_t DoAction();

 private:
  static zx_status_t SendPoweroff();

  async_dispatcher_t* dispatcher_;
  fidl::ServerBindingGroup<fuchsia_power_button::Monitor> bindings_;
  Action action_ = Action::kShutdown;
};

}  // namespace pwrbtn

#endif  // SRC_BRINGUP_BIN_CRITICAL_SERVICES_MONITOR_H_