/**
 * Copyright 1993-2013 NVIDIA Corporation.  All rights reserved.
 *
 * Please refer to the NVIDIA end user license agreement (EULA) associated
 * with this source code for terms and conditions that govern your use of
 * this software. Any use, reproduction, disclosure, or distribution of
 * this software and related documentation outside the terms of the EULA
 * is strictly prohibited.
 *
 */

/* Cuda UTility Library */

// includes, file
#include "StopWatchWin.h"

////////////////////////////////////////////////////////////////////////////////
// Variables, static

namespace npp
{
    double StopWatchWin::freq;

    bool   StopWatchWin::freq_set;

    StopWatchWin::StopWatchWin() :
        start_time(),
        end_time(),
        diff_time(0.0),
        total_time(0.0),
        running(false)
    {
        if (! freq_set)
        {
            // helper variable
            LARGE_INTEGER temp;

            // get the tick frequency from the OS
            QueryPerformanceFrequency((LARGE_INTEGER *) &temp);

            // convert to type in which it is needed
            freq = ((double) temp.QuadPart) / 1000.0;

            // rememeber query
            freq_set = true;
        }
    }

    StopWatchWin::~StopWatchWin() { }

} // npp namespace
