FWindowsPlatformTime Struct Reference

#include <WindowsPlatformTime.h>

Inheritance diagram for FWindowsPlatformTime:

Static Public Member Functions
static CORE_API double	InitTiming ()
static double	Seconds ()
static uint32	Cycles ()
static uint64	Cycles64 ()
static CORE_API void	SystemTime (int32 &Year, int32 &Month, int32 &DayOfWeek, int32 &Day, int32 &Hour, int32 &Min, int32 &Sec, int32 &MSec)
static CORE_API void	UtcTime (int32 &Year, int32 &Month, int32 &DayOfWeek, int32 &Day, int32 &Hour, int32 &Min, int32 &Sec, int32 &MSec)
static CORE_API bool	UpdateCPUTime (float DeltaTime)
static CORE_API bool	UpdateThreadCPUTime (float=0.0)
static CORE_API void	AutoUpdateGameThreadCPUTime (double UpdateInterval)
static CORE_API FCPUTime	GetCPUTime ()
static CORE_API FCPUTime	GetThreadCPUTime ()
static CORE_API double	GetLastIntervalThreadCPUTimeInSeconds ()
Static Public Member Functions inherited from FGenericPlatformTime
static CORE_API TCHAR *	StrDate (TCHAR *Dest, SIZE_T DestSize)
static CORE_API TCHAR *	StrTime (TCHAR *Dest, SIZE_T DestSize)
static CORE_API const TCHAR *	StrTimestamp ()
static CORE_API FString	PrettyTime (double Seconds)
static bool	UpdateCPUTime (float DeltaTime)
static bool	UpdateThreadCPUTime (float=0.0)
static void	AutoUpdateGameThreadCPUTime (double UpdateInterval)
static FCPUTime	GetCPUTime ()
static FCPUTime	GetThreadCPUTime ()
static double	GetLastIntervalCPUTimeInSeconds ()
static double	GetLastIntervalThreadCPUTimeInSeconds ()
static double	GetSecondsPerCycle ()
static float	ToMilliseconds (const uint32 Cycles)
static float	ToSeconds (const uint32 Cycles)
static double	GetSecondsPerCycle64 ()
static double	ToMilliseconds64 (const uint64 Cycles)
static double	ToSeconds64 (const uint64 Cycles)
static uint64	SecondsToCycles64 (double Seconds)

Static Protected Attributes
static CORE_API float	CPUTimePctRelative = 0.0f
Static Protected Attributes inherited from FGenericPlatformTime
static CORE_API double	SecondsPerCycle = 0.0
static CORE_API double	SecondsPerCycle64 = 0.0
static CORE_API double	LastIntervalCPUTimeInSeconds = 0.0

Detailed Description

Windows implementation of the Time OS functions.

Please see following UDN post about using rdtsc on processors that support result being invariant across cores.

https://udn.epicgames.com/lists/showpost.php?id=46794&list=unprog3

Member Function Documentation

AutoUpdateGameThreadCPUTime()

void FWindowsPlatformTime::AutoUpdateGameThreadCPUTime ( double  UpdateInterval )

static

Cycles()

static uint32 FWindowsPlatformTime::Cycles ( )

inlinestatic

Cycles64()

static uint64 FWindowsPlatformTime::Cycles64 ( )

inlinestatic

GetCPUTime()

FCPUTime FWindowsPlatformTime::GetCPUTime ( )

static

GetLastIntervalThreadCPUTimeInSeconds()

double FWindowsPlatformTime::GetLastIntervalThreadCPUTimeInSeconds ( )

static

GetThreadCPUTime()

FCPUTime FWindowsPlatformTime::GetThreadCPUTime ( )

static

InitTiming()

double FWindowsPlatformTime::InitTiming ( void  )

static

Seconds()

static double FWindowsPlatformTime::Seconds ( )

inlinestatic

SystemTime()

void FWindowsPlatformTime::SystemTime ( int32 &  Year, int32 &  Month, int32 &  DayOfWeek, int32 &  Day, int32 &  Hour, int32 &  Min, int32 &  Sec, int32 &  MSec  )

static

UpdateCPUTime()

bool FWindowsPlatformTime::UpdateCPUTime ( float  DeltaTime )

static

UpdateThreadCPUTime()

bool FWindowsPlatformTime::UpdateThreadCPUTime ( float  = 0.0 )

static

UtcTime()

void FWindowsPlatformTime::UtcTime ( int32 &  Year, int32 &  Month, int32 &  DayOfWeek, int32 &  Day, int32 &  Hour, int32 &  Min, int32 &  Sec, int32 &  MSec  )

static

Member Data Documentation

CPUTimePctRelative

float FWindowsPlatformTime::CPUTimePctRelative = 0.0f

staticprotected

Percentage CPU utilization for the last interval relative to one core.

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The documentation for this struct was generated from the following files:

• Engine/Source/Runtime/Core/Public/Windows/WindowsPlatformTime.h
• Engine/Source/Runtime/Core/Private/Windows/WindowsPlatformTime.cpp