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 #include "update_engine/update_manager/real_time_provider.h" 18 19 #include <string> 20 21 #include <base/time/time.h> 22 23 #include "update_engine/common/clock_interface.h" 24 25 using base::Time; 26 using base::TimeDelta; 27 using chromeos_update_engine::ClockInterface; 28 using std::string; 29 30 namespace chromeos_update_manager { 31 32 // A variable returning the current date. 33 class CurrDateVariable : public Variable<Time> { 34 public: 35 // TODO(garnold) Turn this into an async variable with the needed callback 36 // logic for when it value changes. 37 CurrDateVariable(const string& name, ClockInterface* clock) 38 : Variable<Time>(name, TimeDelta::FromHours(1)), clock_(clock) {} 39 40 protected: 41 virtual const Time* GetValue(TimeDelta /* timeout */, 42 string* /* errmsg */) { 43 Time::Exploded now_exp; 44 clock_->GetWallclockTime().LocalExplode(&now_exp); 45 now_exp.hour = now_exp.minute = now_exp.second = now_exp.millisecond = 0; 46 return new Time(Time::FromLocalExploded(now_exp)); 47 } 48 49 private: 50 ClockInterface* clock_; 51 52 DISALLOW_COPY_AND_ASSIGN(CurrDateVariable); 53 }; 54 55 // A variable returning the current hour in local time. 56 class CurrHourVariable : public Variable<int> { 57 public: 58 // TODO(garnold) Turn this into an async variable with the needed callback 59 // logic for when it value changes. 60 CurrHourVariable(const string& name, ClockInterface* clock) 61 : Variable<int>(name, TimeDelta::FromMinutes(5)), clock_(clock) {} 62 63 protected: 64 virtual const int* GetValue(TimeDelta /* timeout */, 65 string* /* errmsg */) { 66 Time::Exploded exploded; 67 clock_->GetWallclockTime().LocalExplode(&exploded); 68 return new int(exploded.hour); 69 } 70 71 private: 72 ClockInterface* clock_; 73 74 DISALLOW_COPY_AND_ASSIGN(CurrHourVariable); 75 }; 76 77 bool RealTimeProvider::Init() { 78 var_curr_date_.reset(new CurrDateVariable("curr_date", clock_)); 79 var_curr_hour_.reset(new CurrHourVariable("curr_hour", clock_)); 80 return true; 81 } 82 83 } // namespace chromeos_update_manager 84
