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/*
* Copyright (c) 2021 SUSE LLC
*
* All Rights Reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License as published
* by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, contact Novell, Inc.
*
* To contact Novell about this file by physical or electronic mail, you may
* find current contact information at www.novell.com.
*/
#ifndef SNAPPER_LIMIT_H
#define SNAPPER_LIMIT_H
#include <string>
#include <ostream>
namespace snapper
{
using namespace std;
class Limit
{
public:
Limit(double fraction) : type(FRACTION), fraction(fraction) {}
/**
* Uses the classic locale since the class is intended for config data.
*/
void parse(const string& s);
friend ostream& operator<<(ostream& str, const Limit& limit);
protected:
enum Type { FRACTION, ABSOLUTE };
Type type;
union
{
double fraction;
unsigned long long absolute;
};
};
class MaxUsedLimit : public Limit
{
public:
MaxUsedLimit(double fraction) : Limit(fraction) {}
bool is_enabled() const;
bool is_satisfied(unsigned long long size, unsigned long long used) const;
};
class MinFreeLimit : public Limit
{
public:
MinFreeLimit(double fraction) : Limit(fraction) {}
bool is_enabled() const;
bool is_satisfied(unsigned long long size, unsigned long long free) const;
};
}
#endif
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