policy_manager/shill_provider.h

// Copyright (c) 2014 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 CHROMEOS_PLATFORM_UPDATE_ENGINE_POLICY_MANAGER_SHILL_PROVIDER_H_
#define CHROMEOS_PLATFORM_UPDATE_ENGINE_POLICY_MANAGER_SHILL_PROVIDER_H_

#include <base/memory/scoped_ptr.h>
#include <base/time.h>

#include "update_engine/policy_manager/provider.h"
#include "update_engine/policy_manager/variable.h"

namespace chromeos_policy_manager {

enum class ConnectionType {
  kEthernet,
  kWifi,
  kWimax,
  kBluetooth,
  kCellular,
  kUnknown
};

// Provider for networking related information.
class ShillProvider : public Provider {
 public:
  // Returns whether we currently have network connectivity.
  Variable<bool>* var_is_connected() const {
    return var_is_connected_.get();
  }

  // Returns the current network connection type. Unknown if not connected.
  Variable<ConnectionType>* var_conn_type() const {
    return var_conn_type_.get();
  }

  // Returns the time when network connection last changed; initialized to
  // current time.
  Variable<base::Time>* var_conn_last_changed() const {
    return var_conn_last_changed_.get();
  }

 protected:
  ShillProvider() {}

  void set_var_is_connected(Variable<bool>* var_is_connected) {
    var_is_connected_.reset(var_is_connected);
  }

  void set_var_conn_type(Variable<ConnectionType>* var_conn_type) {
    var_conn_type_.reset(var_conn_type);
  }

  void set_var_conn_last_changed(Variable<base::Time>* var_conn_last_changed) {
    var_conn_last_changed_.reset(var_conn_last_changed);
  }

 private:
  scoped_ptr<Variable<bool>> var_is_connected_;
  scoped_ptr<Variable<ConnectionType>> var_conn_type_;
  scoped_ptr<Variable<base::Time>> var_conn_last_changed_;

  DISALLOW_COPY_AND_ASSIGN(ShillProvider);
};

}  // namespace chromeos_policy_manager

#endif  // CHROMEOS_PLATFORM_UPDATE_ENGINE_POLICY_MANAGER_SHILL_PROVIDER_H_