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_BINDER_SERVICE_ANDROID_H_
18#define UPDATE_ENGINE_BINDER_SERVICE_ANDROID_H_
19
20#include <stdint.h>
21
22#include <string>
23#include <vector>
24
25#include <utils/Errors.h>
26#include <utils/String16.h>
27#include <utils/StrongPointer.h>
28
29#include "android/os/BnUpdateEngine.h"
30#include "android/os/IUpdateEngineCallback.h"
31#include "update_engine/service_delegate_android_interface.h"
32#include "update_engine/service_observer_interface.h"
33
34namespace chromeos_update_engine {
35
36class BinderUpdateEngineAndroidService : public android::os::BnUpdateEngine,
37                                         public ServiceObserverInterface {
38 public:
39  explicit BinderUpdateEngineAndroidService(
40      ServiceDelegateAndroidInterface* service_delegate);
41  ~BinderUpdateEngineAndroidService() override = default;
42
43  const char* ServiceName() const {
44    return "android.os.UpdateEngineService";
45  }
46
47  // ServiceObserverInterface overrides.
48  void SendStatusUpdate(int64_t last_checked_time,
49                        double progress,
50                        update_engine::UpdateStatus status,
51                        const std::string& new_version,
52                        int64_t new_size) override;
53  void SendPayloadApplicationComplete(ErrorCode error_code) override;
54
55  // Channel tracking changes are ignored.
56  void SendChannelChangeUpdate(const std::string& tracking_channel) override {}
57
58  // android::os::BnUpdateEngine overrides.
59  android::binder::Status applyPayload(
60      const android::String16& url,
61      int64_t payload_offset,
62      int64_t payload_size,
63      const std::vector<android::String16>& header_kv_pairs) override;
64  android::binder::Status bind(
65      const android::sp<android::os::IUpdateEngineCallback>& callback,
66      bool* return_value) override;
67  android::binder::Status suspend() override;
68  android::binder::Status resume() override;
69  android::binder::Status cancel() override;
70  android::binder::Status resetStatus() override;
71
72 private:
73  // Remove the passed |callback| from the list of registered callbacks. Called
74  // whenever the callback object is destroyed.
75  void UnbindCallback(android::os::IUpdateEngineCallback* callback);
76
77  // List of currently bound callbacks.
78  std::vector<android::sp<android::os::IUpdateEngineCallback>> callbacks_;
79
80  // Cached copy of the last status update sent. Used to send an initial
81  // notification when bind() is called from the client.
82  int last_status_{-1};
83  double last_progress_{0.0};
84
85  ServiceDelegateAndroidInterface* service_delegate_;
86};
87
88}  // namespace chromeos_update_engine
89
90#endif  // UPDATE_ENGINE_BINDER_SERVICE_ANDROID_H_
91