CWE-ou-minkata/Sources/Plasma/NucleusLib/pnUtilsExe/Private/pnUteTime.cpp

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*==LICENSE==*/
/*****************************************************************************
*
*   $/Plasma20/Sources/Plasma/NucleusLib/pnUtilsExe/Private/pnUteTime.cpp
*   
***/

#include "../Pch.h"
#pragma hdrstop


namespace pnUtilsExe {

/*****************************************************************************
*
*   Time adjustment functions
*
*   For debug builds, adjust the initial time value so that the high
*   bit or the time value itself is about to wrap, to catch application
*   bugs that don't handle wrapping or depend on the high bit's value.
*
***/

static uint32_t s_adjustment;

//===========================================================================
static void InitializeAdjustment () {
    ASSERT(!s_adjustment);
    uint32_t currTime  = TimeGetTickCount();
    uint32_t startBits = (currTime & 0x80) ? 0x7fff0000 : 0xffff0000;
    uint32_t startMask = 0xffff0000;
    s_adjustment = (((currTime & ~startMask) | startBits) - currTime) | 1;
    ASSERT(s_adjustment);
}

//===========================================================================
AUTO_INIT_FUNC(AutoInitializeAdjustment) {
    if (!s_adjustment)
        InitializeAdjustment();
}

} using namespace pnUtilsExe;


/*****************************************************************************
*
*   Exports
*
***/

//============================================================================
uint32_t TimeGetMs () {
#ifdef HS_DEBUGGING

    // For debug builds, return an adjusted timer value
    if (!s_adjustment)
        InitializeAdjustment();
    return TimeGetTickCount() + s_adjustment;

#else

    // For release builds, just return the operating system's timer
    return TimeGetTickCount();

#endif
}