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30 lines
820 B
C++
30 lines
820 B
C++
//
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// PortableHighResolutionClock.cpp
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// libraries/shared/src
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//
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// Created by Stephen Birarda on 2015-09-14.
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// Copyright 2015 High Fidelity, Inc.
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//
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// Distributed under the Apache License, Version 2.0.
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// See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
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//
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#if defined(_MSC_VER) && _MSC_VER < 1900
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#include "PortableHighResolutionClock.h"
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namespace {
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const long long g_Frequency = []() -> long long {
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LARGE_INTEGER frequency;
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QueryPerformanceFrequency(&frequency);
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return frequency.QuadPart;
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}();
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}
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win_high_resolution_clock::time_point win_high_resolution_clock::now() {
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LARGE_INTEGER count;
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QueryPerformanceCounter(&count);
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return time_point(duration(count.QuadPart * static_cast<rep>(period::den) / g_Frequency));
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}
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#endif
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