//
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// Copyright (C) 2014 The Android Open Source Project
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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#include "update_engine/update_manager/real_time_provider.h"
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#include <string>
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#include <base/time/time.h>
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#include "update_engine/common/clock_interface.h"
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using base::Time;
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using base::TimeDelta;
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using chromeos_update_engine::ClockInterface;
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using std::string;
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namespace chromeos_update_manager {
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// A variable returning the current date.
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class CurrDateVariable : public Variable<Time> {
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public:
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// TODO(garnold) Turn this into an async variable with the needed callback
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// logic for when it value changes.
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CurrDateVariable(const string& name, ClockInterface* clock)
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: Variable<Time>(name, TimeDelta::FromHours(1)), clock_(clock) {}
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protected:
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virtual const Time* GetValue(TimeDelta /* timeout */, string* /* errmsg */) {
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Time::Exploded now_exp;
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clock_->GetWallclockTime().LocalExplode(&now_exp);
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now_exp.hour = now_exp.minute = now_exp.second = now_exp.millisecond = 0;
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Time* now = new Time();
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bool success = Time::FromLocalExploded(now_exp, now);
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DCHECK(success);
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return now;
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}
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private:
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ClockInterface* clock_;
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DISALLOW_COPY_AND_ASSIGN(CurrDateVariable);
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};
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// A variable returning the current hour in local time.
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class CurrHourVariable : public Variable<int> {
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public:
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// TODO(garnold) Turn this into an async variable with the needed callback
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// logic for when it value changes.
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CurrHourVariable(const string& name, ClockInterface* clock)
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: Variable<int>(name, TimeDelta::FromMinutes(5)), clock_(clock) {}
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protected:
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virtual const int* GetValue(TimeDelta /* timeout */, string* /* errmsg */) {
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Time::Exploded exploded;
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clock_->GetWallclockTime().LocalExplode(&exploded);
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return new int(exploded.hour);
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}
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private:
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ClockInterface* clock_;
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DISALLOW_COPY_AND_ASSIGN(CurrHourVariable);
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};
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class CurrMinuteVariable : public Variable<int> {
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public:
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CurrMinuteVariable(const string& name, ClockInterface* clock)
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: Variable<int>(name, TimeDelta::FromSeconds(15)), clock_(clock) {}
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protected:
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virtual const int* GetValue(TimeDelta /* timeout */, string* /* errmsg */) {
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Time::Exploded exploded;
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clock_->GetWallclockTime().LocalExplode(&exploded);
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return new int(exploded.minute);
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}
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private:
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ClockInterface* clock_;
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DISALLOW_COPY_AND_ASSIGN(CurrMinuteVariable);
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};
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bool RealTimeProvider::Init() {
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var_curr_date_.reset(new CurrDateVariable("curr_date", clock_));
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var_curr_hour_.reset(new CurrHourVariable("curr_hour", clock_));
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var_curr_minute_.reset(new CurrMinuteVariable("curr_minute", clock_));
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return true;
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}
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} // namespace chromeos_update_manager
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