ClearScript/ClearScriptV8/HighResolutionClock.cpp at master · ClearFoundry/ClearScript · GitHub

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// Licensed under the MIT license.

#include "ClearScriptV8Native.h"

//-----------------------------------------------------------------------------

// HighResolutionClock implementation

//-----------------------------------------------------------------------------

double HighResolutionClock::SleepMilliseconds(double delay, bool precise)

{

auto start = std::chrono::high_resolution_clock::now();

auto end = start + std::chrono::duration<double, std::milli>(delay);

std::chrono::high_resolution_clock::time_point final;

if (!precise)

{

std::this_thread::sleep_for(std::chrono::duration<double, std::milli>(delay));

final = std::chrono::high_resolution_clock::now();

}

else

{

while ((final = std::chrono::high_resolution_clock::now()) < end) std::this_thread::yield();

}

return std::chrono::duration<double, std::milli>(final - end).count();

}

//-----------------------------------------------------------------------------

double HighResolutionClock::GetMillisecondsSinceUnixEpoch()

{

return std::chrono::duration<double, std::milli>(std::chrono::system_clock::now().time_since_epoch()).count();

}

//-----------------------------------------------------------------------------

double HighResolutionClock::GetRelativeMilliseconds()

{

return std::chrono::duration<double, std::milli>(std::chrono::high_resolution_clock::now().time_since_epoch()).count();

}

//-----------------------------------------------------------------------------

double HighResolutionClock::GetRelativeSeconds()

{

return std::chrono::duration<double>(std::chrono::high_resolution_clock::now().time_since_epoch()).count();

}

ClearScript/ClearScriptV8/HighResolutionClock.cpp at master · ClearFoundry/ClearScript · GitHub

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