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