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_WEAVE_SERVICE_H_
18 #define UPDATE_ENGINE_WEAVE_SERVICE_H_
19 
20 #include <memory>
21 #include <string>
22 
23 #include <base/memory/weak_ptr.h>
24 #include <libweaved/command.h>
25 #include <libweaved/service.h>
26 
27 #include "update_engine/weave_service_interface.h"
28 
29 namespace chromeos_update_engine {
30 
31 class WeaveService : public WeaveServiceInterface {
32  public:
33   WeaveService() = default;
34   ~WeaveService() override = default;
35 
36   bool Init(DelegateInterface* delegate);
37 
38   // ServiceObserverInterface overrides.
39   void SendStatusUpdate(int64_t last_checked_time,
40                         double progress,
41                         update_engine::UpdateStatus status,
42                         const std::string& new_version,
43                         int64_t new_size) override;
44   void SendChannelChangeUpdate(const std::string& tracking_channel) override;
SendPayloadApplicationComplete(ErrorCode error_code)45   void SendPayloadApplicationComplete(ErrorCode error_code) override {}
46 
47  private:
48   // Force a weave update.
49   void UpdateWeaveState();
50 
51   void OnWeaveServiceConnected(const std::weak_ptr<weaved::Service>& service);
52 
53   // Weave command handlers. These are called from the message loop whenever a
54   // command is received and dispatch the synchronous call to the |delegate_|.
55   void OnCheckForUpdates(std::unique_ptr<weaved::Command> cmd);
56   void OnTrackChannel(std::unique_ptr<weaved::Command> cmd);
57 
58   WeaveServiceInterface::DelegateInterface* delegate_{nullptr};
59 
60   std::unique_ptr<weaved::Service::Subscription> weave_service_subscription_;
61   std::weak_ptr<weaved::Service> weave_service_;
62 };
63 
64 }  // namespace chromeos_update_engine
65 
66 #endif  // UPDATE_ENGINE_WEAVE_SERVICE_H_
67