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      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 UPDATE_ENGINE_CLIENT_LIBRARY_CLIENT_DBUS_H_
     18 #define UPDATE_ENGINE_CLIENT_LIBRARY_CLIENT_DBUS_H_
     19 
     20 #include <cstdint>
     21 #include <memory>
     22 #include <string>
     23 #include <vector>
     24 
     25 #include <base/macros.h>
     26 
     27 #include "update_engine/client_library/include/update_engine/client.h"
     28 #include "update_engine/dbus-proxies.h"
     29 
     30 namespace update_engine {
     31 namespace internal {
     32 
     33 class DBusUpdateEngineClient : public UpdateEngineClient {
     34  public:
     35   DBusUpdateEngineClient() = default;
     36   bool Init();
     37 
     38   virtual ~DBusUpdateEngineClient() = default;
     39 
     40   bool AttemptUpdate(const std::string& app_version,
     41                      const std::string& omaha_url,
     42                      bool at_user_request) override;
     43 
     44   bool GetStatus(int64_t* out_last_checked_time,
     45                  double* out_progress,
     46                  UpdateStatus* out_update_status,
     47                  std::string* out_new_version,
     48                  int64_t* out_new_size) const override;
     49 
     50   bool SetCohortHint(const std::string& cohort_hint) override;
     51   bool GetCohortHint(std::string* cohort_hint) const override;
     52 
     53   bool SetUpdateOverCellularPermission(bool allowed) override;
     54   bool GetUpdateOverCellularPermission(bool* allowed) const override;
     55 
     56   bool SetP2PUpdatePermission(bool enabled) override;
     57   bool GetP2PUpdatePermission(bool* enabled) const override;
     58 
     59   bool Rollback(bool powerwash) override;
     60 
     61   bool GetRollbackPartition(std::string* rollback_partition) const override;
     62 
     63   void RebootIfNeeded() override;
     64 
     65   bool GetPrevVersion(std::string* prev_version) const override;
     66 
     67   bool ResetStatus() override;
     68 
     69   bool SetTargetChannel(const std::string& target_channel,
     70                         bool allow_powerwash) override;
     71 
     72   bool GetTargetChannel(std::string* out_channel) const override;
     73 
     74   bool GetChannel(std::string* out_channel) const override;
     75 
     76   bool RegisterStatusUpdateHandler(StatusUpdateHandler* handler) override;
     77   bool UnregisterStatusUpdateHandler(StatusUpdateHandler* handler) override;
     78 
     79   bool GetLastAttemptError(int32_t* last_attempt_error) const override;
     80 
     81   bool GetEolStatus(int32_t* eol_status) const override;
     82 
     83  private:
     84   void DBusStatusHandlersRegistered(const std::string& interface,
     85                                     const std::string& signal_name,
     86                                     bool success) const;
     87 
     88   // Send an initial event to new StatusUpdateHandlers. If the handler argument
     89   // is not nullptr, only that handler receives the event. Otherwise all
     90   // registered handlers receive the event.
     91   void StatusUpdateHandlersRegistered(StatusUpdateHandler* handler) const;
     92 
     93   void RunStatusUpdateHandlers(int64_t last_checked_time,
     94                                double progress,
     95                                const std::string& current_operation,
     96                                const std::string& new_version,
     97                                int64_t new_size);
     98 
     99   std::unique_ptr<org::chromium::UpdateEngineInterfaceProxy> proxy_;
    100   std::vector<update_engine::StatusUpdateHandler*> handlers_;
    101   bool dbus_handler_registered_{false};
    102 
    103   DISALLOW_COPY_AND_ASSIGN(DBusUpdateEngineClient);
    104 };  // class DBusUpdateEngineClient
    105 
    106 }  // namespace internal
    107 }  // namespace update_engine
    108 
    109 #endif  // UPDATE_ENGINE_CLIENT_LIBRARY_CLIENT_DBUS_H_
    110