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/* === This file is part of Calamares - <https://github.com/calamares> ===
*
* Copyright 2017, Adriaan de Groot <groot@kde.org>
* Copyright 2019, Collabora Ltd <arnaud.ferraris@collabora.com>
*
* Calamares is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Calamares 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 Calamares. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef UTILS_UNITS_H
#define UTILS_UNITS_H
#include <QtCore/QIntegerForSize>
namespace CalamaresUtils
{
/** User defined literals, 1_KiB is 1 KibiByte (= 2^10 bytes) */
constexpr qint64 operator ""_KiB( unsigned long long m )
{
return qint64(m) * 1024;
}
/** User defined literals, 1_MiB is 1 MibiByte (= 2^20 bytes) */
constexpr qint64 operator ""_MiB( unsigned long long m )
{
return operator ""_KiB(m) * 1024;
}
/** User defined literals, 1_GiB is 1 GibiByte (= 2^30 bytes) */
constexpr qint64 operator ""_GiB( unsigned long long m )
{
return operator ""_MiB(m) * 1024;
}
constexpr qint64 KiBtoBytes( unsigned long long m )
{
return operator ""_KiB( m );
}
constexpr qint64 MiBtoBytes( unsigned long long m )
{
return operator ""_MiB( m );
}
constexpr qint64 GiBtoBytes( unsigned long long m )
{
return operator ""_GiB( m );
}
constexpr qint64 KiBtoBytes( double m )
{
return qint64(m * 1024);
}
constexpr qint64 MiBtoBytes( double m )
{
return qint64(m * 1024 * 1024);
}
constexpr qint64 GiBtoBytes( double m )
{
return qint64(m * 1024 * 1024 * 1024);
}
constexpr int BytesToMiB( qint64 b )
{
return int( b / 1024 / 1024 );
}
constexpr qint64 alignBytesToBlockSize( qint64 bytes, qint64 blocksize )
{
qint64 blocks = bytes / blocksize;
if ( blocks * blocksize != bytes )
++blocks;
return blocks * blocksize;
}
constexpr qint64 bytesToSectors( qint64 bytes, qint64 blocksize )
{
return alignBytesToBlockSize( alignBytesToBlockSize( bytes, blocksize), MiBtoBytes(1ULL) ) / blocksize;
}
} // namespace
#endif
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