Home | History | Annotate | Download | only in update_manager
      1 //
      2 // Copyright (C) 2014 The Android Open Source Project
      3 //
      4 // Licensed under the Apache License, Version 2.0 (the "License");
      5 // you may not use this file except in compliance with the License.
      6 // You may obtain a copy of the License at
      7 //
      8 //      http://www.apache.org/licenses/LICENSE-2.0
      9 //
     10 // Unless required by applicable law or agreed to in writing, software
     11 // distributed under the License is distributed on an "AS IS" BASIS,
     12 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13 // See the License for the specific language governing permissions and
     14 // limitations under the License.
     15 //
     16 
     17 #ifndef UPDATE_ENGINE_UPDATE_MANAGER_REAL_SHILL_PROVIDER_H_
     18 #define UPDATE_ENGINE_UPDATE_MANAGER_REAL_SHILL_PROVIDER_H_
     19 
     20 // TODO(garnold) Much of the functionality in this module was adapted from the
     21 // update engine's connection_manager.  We need to make sure to deprecate use of
     22 // connection manager when the time comes.
     23 
     24 #include <memory>
     25 #include <string>
     26 
     27 #include <base/time/time.h>
     28 #include <dbus/object_path.h>
     29 
     30 #include "update_engine/common/clock_interface.h"
     31 #include "update_engine/shill_proxy_interface.h"
     32 #include "update_engine/update_manager/generic_variables.h"
     33 #include "update_engine/update_manager/shill_provider.h"
     34 
     35 namespace chromeos_update_manager {
     36 
     37 // ShillProvider concrete implementation.
     38 class RealShillProvider : public ShillProvider {
     39  public:
     40   RealShillProvider(chromeos_update_engine::ShillProxyInterface* shill_proxy,
     41                     chromeos_update_engine::ClockInterface* clock)
     42       : shill_proxy_(shill_proxy), clock_(clock) {}
     43 
     44   ~RealShillProvider() override = default;
     45 
     46   // Initializes the provider and returns whether it succeeded.
     47   bool Init();
     48 
     49   Variable<bool>* var_is_connected() override {
     50     return &var_is_connected_;
     51   }
     52 
     53   Variable<chromeos_update_engine::ConnectionType>* var_conn_type() override {
     54     return &var_conn_type_;
     55   }
     56 
     57   Variable<chromeos_update_engine::ConnectionTethering>* var_conn_tethering() override {
     58     return &var_conn_tethering_;
     59   }
     60 
     61   Variable<base::Time>* var_conn_last_changed() override {
     62     return &var_conn_last_changed_;
     63   }
     64 
     65  private:
     66   // A handler for ManagerProxy.PropertyChanged signal.
     67   void OnManagerPropertyChanged(const std::string& name,
     68                                 const brillo::Any& value);
     69 
     70   // Called when the signal in ManagerProxy.PropertyChanged is connected.
     71   void OnSignalConnected(const std::string& interface_name,
     72                          const std::string& signal_name,
     73                          bool successful);
     74 
     75   // Get the connection and populate the type and tethering status of the given
     76   // default connection.
     77   bool ProcessDefaultService(const dbus::ObjectPath& default_service_path);
     78 
     79   // The current default service path, if connected. "/" means not connected.
     80   dbus::ObjectPath default_service_path_{"uninitialized"};
     81 
     82   // The mockable interface to access the shill DBus proxies.
     83   std::unique_ptr<chromeos_update_engine::ShillProxyInterface> shill_proxy_;
     84 
     85   // A clock abstraction (mockable).
     86   chromeos_update_engine::ClockInterface* const clock_;
     87 
     88   // The provider's variables.
     89   AsyncCopyVariable<bool> var_is_connected_{"is_connected"};
     90   AsyncCopyVariable<chromeos_update_engine::ConnectionType> var_conn_type_{
     91       "conn_type"};
     92   AsyncCopyVariable<chromeos_update_engine::ConnectionTethering>
     93       var_conn_tethering_{"conn_tethering"};
     94   AsyncCopyVariable<base::Time> var_conn_last_changed_{"conn_last_changed"};
     95 
     96   DISALLOW_COPY_AND_ASSIGN(RealShillProvider);
     97 };
     98 
     99 }  // namespace chromeos_update_manager
    100 
    101 #endif  // UPDATE_ENGINE_UPDATE_MANAGER_REAL_SHILL_PROVIDER_H_
    102