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Merge pull request #1408 from randomstuff/perf
Profiling: measure time on non-Windows/POSIX using clock_gettime
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// Copyright 2013 Dolphin Emulator Project | ||
// Licensed under GPLv2 | ||
// Refer to the license.txt file included. | ||
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#if !defined(_WIN32) | ||
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#include <cstdint> | ||
#include <ctime> | ||
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#include <unistd.h> | ||
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#include "Common/CommonTypes.h" | ||
#include "Common/PerformanceCounter.h" | ||
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#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 | ||
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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 | ||
} | ||
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bool QueryPerformanceFrequency(u64* out) | ||
{ | ||
#if defined(_POSIX_TIMERS) && _POSIX_TIMERS > 0 | ||
*out = 1000000000; | ||
return true; | ||
#else | ||
*out = 1; | ||
return false; | ||
#endif | ||
} | ||
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#endif |
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// Copyright 2014 Dolphin Emulator Project | ||
// Licensed under GPLv2 | ||
// Refer to the license.txt file included. | ||
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#pragma once | ||
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#if !defined(_WIN32) | ||
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#include <cstdint> | ||
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#include "Common/CommonTypes.h" | ||
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typedef u64 LARGE_INTEGER; | ||
bool QueryPerformanceCounter(u64* out); | ||
bool QueryPerformanceFrequency(u64* lpFrequency); | ||
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#endif |
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