dolphin/Source/Core/Common/PerformanceCounter.cpp

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// Copyright 2014 Dolphin Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#if !defined(_WIN32)
2021-12-10 03:22:16 +01:00
#include "Common/PerformanceCounter.h"
#include <cstdint>
#include <ctime>
#include <unistd.h>
#include "Common/CommonTypes.h"
#if defined(_POSIX_TIMERS) && _POSIX_TIMERS > 0
#if defined(_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK > 0
#define DOLPHIN_CLOCK CLOCK_MONOTONIC
#else
#define DOLPHIN_CLOCK CLOCK_REALTIME
#endif
#endif
bool QueryPerformanceCounter(u64* out)
{
#if defined(_POSIX_TIMERS) && _POSIX_TIMERS > 0
timespec tp;
if (clock_gettime(DOLPHIN_CLOCK, &tp))
return false;
*out = (u64)tp.tv_nsec + (u64)1000000000 * (u64)tp.tv_sec;
return true;
#else
*out = 0;
return false;
#endif
}
bool QueryPerformanceFrequency(u64* out)
{
#if defined(_POSIX_TIMERS) && _POSIX_TIMERS > 0
*out = 1000000000;
return true;
#else
*out = 1;
return false;
#endif
}
#endif