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xmrig/src/backend/common/misc/PciTopology.h

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/* XMRig
* Copyright (c) 2018-2024 SChernykh <https://github.com/SChernykh>
* Copyright (c) 2016-2024 XMRig <https://github.com/xmrig>, <support@xmrig.com>
*
* This program 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.
*
* 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, see <http://www.gnu.org/licenses/>.
*/
#ifndef XMRIG_PCITOPOLOGY_H
#define XMRIG_PCITOPOLOGY_H
#include <cstdio>
#include "base/tools/String.h"
namespace xmrig {
class PciTopology
{
public:
PciTopology() = default;
template<typename T>
inline PciTopology(T bus, T device, T function)
: m_valid(true),
m_bus(static_cast<uint8_t>(bus)),
m_device(static_cast<uint8_t>(device)),
m_function(static_cast<uint8_t>(function))
{}
inline bool isEqual(const PciTopology &other) const { return m_valid == other.m_valid && toUint32() == other.toUint32(); }
inline bool isValid() const { return m_valid; }
inline uint8_t bus() const { return m_bus; }
inline uint8_t device() const { return m_device; }
inline uint8_t function() const { return m_function; }
inline bool operator!=(const PciTopology &other) const { return !isEqual(other); }
inline bool operator<(const PciTopology &other) const { return toUint32() < other.toUint32(); }
inline bool operator==(const PciTopology &other) const { return isEqual(other); }
String toString() const
{
if (!isValid()) {
return "n/a";
}
char *buf = new char[8]();
snprintf(buf, 8, "%02hhx:%02hhx.%01hhx", bus(), device(), function());
return buf;
}
private:
inline uint32_t toUint32() const { return m_bus << 16 | m_device << 8 | m_function; }
bool m_valid = false;
uint8_t m_bus = 0;
uint8_t m_device = 0;
uint8_t m_function = 0;
};
} // namespace xmrig
#endif // XMRIG_PCITOPOLOGY_H