Home | History | Annotate | Download | only in dbus
      1 //
      2 // Copyright (C) 2015 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 SHILL_DBUS_CHROMEOS_POWER_MANAGER_PROXY_H_
     18 #define SHILL_DBUS_CHROMEOS_POWER_MANAGER_PROXY_H_
     19 
     20 // An implementation of PowerManagerProxyInterface.  It connects to the dbus and
     21 // listens for events from the power manager.  When they occur, the delegate's
     22 // member functions are called.
     23 
     24 #include <stdint.h>
     25 
     26 #include <string>
     27 #include <vector>
     28 
     29 #include <base/compiler_specific.h>
     30 #include <power_manager/dbus-proxies.h>
     31 
     32 #include "shill/power_manager_proxy_interface.h"
     33 
     34 namespace shill {
     35 
     36 class EventDispatcher;
     37 
     38 class ChromeosPowerManagerProxy : public PowerManagerProxyInterface {
     39  public:
     40   // Constructs a PowerManager DBus object proxy with signals dispatched to
     41   // |delegate|.
     42   ChromeosPowerManagerProxy(
     43       EventDispatcher* dispatcher,
     44       const scoped_refptr<dbus::Bus>& bus,
     45       PowerManagerProxyDelegate* delegate,
     46       const base::Closure& service_appeared_callback,
     47       const base::Closure& service_vanished_callback);
     48   ~ChromeosPowerManagerProxy() override;
     49 
     50   // Inherited from PowerManagerProxyInterface.
     51   bool RegisterSuspendDelay(base::TimeDelta timeout,
     52                             const std::string& description,
     53                             int* delay_id_out) override;
     54   bool UnregisterSuspendDelay(int delay_id) override;
     55   bool ReportSuspendReadiness(int delay_id, int suspend_id) override;
     56   bool RegisterDarkSuspendDelay(base::TimeDelta timeout,
     57                                 const std::string& description,
     58                                 int* delay_id_out) override;
     59   bool UnregisterDarkSuspendDelay(int delay_id) override;
     60   bool ReportDarkSuspendReadiness(int delay_id, int suspend_id) override;
     61   bool RecordDarkResumeWakeReason(const std::string& wake_reason) override;
     62 
     63  private:
     64   // Signal handlers.
     65   void SuspendImminent(const std::vector<uint8_t>& serialized_proto);
     66   void SuspendDone(const std::vector<uint8_t>& serialized_proto);
     67   void DarkSuspendImminent(
     68       const std::vector<uint8_t>& serialized_proto);
     69 
     70   bool RegisterSuspendDelayInternal(bool is_dark,
     71                                     base::TimeDelta timeout,
     72                                     const std::string& description,
     73                                     int* delay_id_out);
     74   bool UnregisterSuspendDelayInternal(bool is_dark, int delay_id);
     75   bool ReportSuspendReadinessInternal(bool is_dark,
     76                                       int delay_id,
     77                                       int suspend_id);
     78 
     79   // Called when service appeared or vanished.
     80   void OnServiceAvailable(bool available);
     81 
     82   // Service name owner changed handler.
     83   void OnServiceOwnerChanged(const std::string& old_owner,
     84                              const std::string& new_owner);
     85 
     86   // Called when signal is connected to the ObjectProxy.
     87   void OnSignalConnected(const std::string& interface_name,
     88                          const std::string& signal_name,
     89                          bool success);
     90 
     91   std::unique_ptr<org::chromium::PowerManagerProxy> proxy_;
     92   EventDispatcher* dispatcher_;
     93   PowerManagerProxyDelegate* delegate_;
     94   base::Closure service_appeared_callback_;
     95   base::Closure service_vanished_callback_;
     96   bool service_available_;
     97 
     98   base::WeakPtrFactory<ChromeosPowerManagerProxy> weak_factory_{this};
     99   DISALLOW_COPY_AND_ASSIGN(ChromeosPowerManagerProxy);
    100 };
    101 
    102 }  // namespace shill
    103 
    104 #endif  // SHILL_DBUS_CHROMEOS_POWER_MANAGER_PROXY_H_
    105