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_UPDATER_PROVIDER_H_
18#define UPDATE_ENGINE_UPDATE_MANAGER_REAL_UPDATER_PROVIDER_H_
19
20#include <memory>
21#include <string>
22
23#include "update_engine/system_state.h"
24#include "update_engine/update_manager/generic_variables.h"
25#include "update_engine/update_manager/updater_provider.h"
26
27namespace chromeos_update_manager {
28
29// A concrete UpdaterProvider implementation using local (in-process) bindings.
30class RealUpdaterProvider : public UpdaterProvider {
31 public:
32  // We assume that any other object handle we get from the system state is
33  // "volatile", and so must be re-acquired whenever access is needed; this
34  // guarantees that parts of the system state can be mocked out at any time
35  // during testing. We further assume that, by the time Init() is called, the
36  // system state object is fully populated and usable.
37  explicit RealUpdaterProvider(
38      chromeos_update_engine::SystemState* system_state);
39
40  // Initializes the provider and returns whether it succeeded.
41  bool Init() { return true; }
42
43  Variable<base::Time>* var_updater_started_time() override {
44    return &var_updater_started_time_;
45  }
46
47  Variable<base::Time>* var_last_checked_time() override {
48    return var_last_checked_time_.get();
49  }
50
51  Variable<base::Time>* var_update_completed_time() override {
52    return var_update_completed_time_.get();
53  }
54
55  Variable<double>* var_progress() override {
56    return var_progress_.get();
57  }
58
59  Variable<Stage>* var_stage() override {
60    return var_stage_.get();
61  }
62
63  Variable<std::string>* var_new_version() override {
64    return var_new_version_.get();
65  }
66
67  Variable<int64_t>* var_payload_size() override {
68    return var_payload_size_.get();
69  }
70
71  Variable<std::string>* var_curr_channel() override {
72    return var_curr_channel_.get();
73  }
74
75  Variable<std::string>* var_new_channel() override {
76    return var_new_channel_.get();
77  }
78
79  Variable<bool>* var_p2p_enabled() override {
80    return var_p2p_enabled_.get();
81  }
82
83  Variable<bool>* var_cellular_enabled() override {
84    return var_cellular_enabled_.get();
85  }
86
87  Variable<unsigned int>* var_consecutive_failed_update_checks() override {
88    return var_consecutive_failed_update_checks_.get();
89  }
90
91  Variable<unsigned int>* var_server_dictated_poll_interval() override {
92    return var_server_dictated_poll_interval_.get();
93  }
94
95  Variable<UpdateRequestStatus>* var_forced_update_requested() override {
96    return var_forced_update_requested_.get();
97  }
98
99 private:
100  // A pointer to the update engine's system state aggregator.
101  chromeos_update_engine::SystemState* system_state_;
102
103  // Variable implementations.
104  ConstCopyVariable<base::Time> var_updater_started_time_;
105  std::unique_ptr<Variable<base::Time>> var_last_checked_time_;
106  std::unique_ptr<Variable<base::Time>> var_update_completed_time_;
107  std::unique_ptr<Variable<double>> var_progress_;
108  std::unique_ptr<Variable<Stage>> var_stage_;
109  std::unique_ptr<Variable<std::string>> var_new_version_;
110  std::unique_ptr<Variable<int64_t>> var_payload_size_;
111  std::unique_ptr<Variable<std::string>> var_curr_channel_;
112  std::unique_ptr<Variable<std::string>> var_new_channel_;
113  std::unique_ptr<Variable<bool>> var_p2p_enabled_;
114  std::unique_ptr<Variable<bool>> var_cellular_enabled_;
115  std::unique_ptr<Variable<unsigned int>> var_consecutive_failed_update_checks_;
116  std::unique_ptr<Variable<unsigned int>> var_server_dictated_poll_interval_;
117  std::unique_ptr<Variable<UpdateRequestStatus>> var_forced_update_requested_;
118
119  DISALLOW_COPY_AND_ASSIGN(RealUpdaterProvider);
120};
121
122}  // namespace chromeos_update_manager
123
124#endif  // UPDATE_ENGINE_UPDATE_MANAGER_REAL_UPDATER_PROVIDER_H_
125