whrt.cpp File Reference

#include "precompiled.h"
#include "lib/sysdep/os/win/whrt/whrt.h"
#include <process.h>
#include "lib/sysdep/cpu.h"
#include "lib/sysdep/os/win/wutil.h"
#include "lib/sysdep/os/win/winit.h"
#include "lib/sysdep/acpi.h"
#include "lib/bits.h"
#include "lib/sysdep/os/win/whrt/counter.h"

Go to the source code of this file.

Classes
struct	TimerState
	stores all timer state shared between readers and the update thread. More...

Namespaces
	ERR
	Introduction

Functions
	WINIT_REGISTER_EARLY_INIT2 (whrt_Init)
	WINIT_REGISTER_LATE_SHUTDOWN (whrt_Shutdown)
static Status	ActivateCounter (ICounter *counter)
static ICounter *	GetNextBestSafeCounter ()
static void	InitCounter ()
static void	ShutdownCounter ()
static u64	Counter ()
static u64	CounterDelta (u64 oldCounter, u64 newCounter)
double	whrt_Resolution ()
static	__declspec (align(64)) TimerState timerStates[2]
static void	UpdateTimerState ()
double	whrt_Time ()
static unsigned __stdcall	UpdateThread (void *data)
static Status	InitUpdateThread ()
static void	ShutdownUpdateThread ()
static Status	whrt_Init ()
static Status	whrt_Shutdown ()

Variables
const Status	ERR::WHRT_COUNTER_UNSAFE = 140000
static ICounter *	counter
static double	nominalFrequency
static double	resolution
static size_t	counterBits
static u64	counterMask
static volatile TimerState *volatile	ts = &timerStates[0]
static volatile TimerState *volatile	ts2 = &timerStates[1]
static const DWORD	UPDATE_INTERVAL_MS = 1000
static HANDLE	hExitEvent
static HANDLE	hUpdateThread

Function Documentation

static __declspec ( align(64)  )

static

static Status ActivateCounter ( ICounter *  counter )

inlinestatic

Definition at line 54 of file whrt.cpp.

static u64 Counter ( )

inlinestatic

Definition at line 129 of file whrt.cpp.

static u64 CounterDelta ( u64  oldCounter, u64  newCounter  )

inlinestatic

Returns

difference [ticks], taking rollover into account. (time-critical, so it's not called through ICounter.)

Definition at line 138 of file whrt.cpp.

static ICounter* GetNextBestSafeCounter ( )

static

Returns

the newly created and unique instance of the next best counter that is deemed safe, or 0 if all have already been created.

Definition at line 68 of file whrt.cpp.

static void InitCounter ( )

static

Definition at line 103 of file whrt.cpp.

static Status InitUpdateThread ( )

inlinestatic

Definition at line 257 of file whrt.cpp.

static void ShutdownCounter ( )

static

Definition at line 124 of file whrt.cpp.

static void ShutdownUpdateThread ( )

inlinestatic

Definition at line 278 of file whrt.cpp.

static unsigned __stdcall UpdateThread ( void *  data )

static

Definition at line 240 of file whrt.cpp.

static void UpdateTimerState ( )

static

Definition at line 190 of file whrt.cpp.

static Status whrt_Init ( )

static

Definition at line 293 of file whrt.cpp.

double whrt_Resolution

(

)

Definition at line 143 of file whrt.cpp.

static Status whrt_Shutdown ( )

static

Definition at line 308 of file whrt.cpp.

double whrt_Time

(

)

Definition at line 208 of file whrt.cpp.

WINIT_REGISTER_EARLY_INIT2

(

whrt_Init

)

WINIT_REGISTER_LATE_SHUTDOWN

(

whrt_Shutdown

)

Variable Documentation

ICounter* counter

static

Definition at line 96 of file whrt.cpp.

size_t counterBits

static

Definition at line 100 of file whrt.cpp.

u64 counterMask

static

Definition at line 101 of file whrt.cpp.

HANDLE hExitEvent

static

Definition at line 237 of file whrt.cpp.

HANDLE hUpdateThread

static

Definition at line 238 of file whrt.cpp.

double nominalFrequency

static

Definition at line 98 of file whrt.cpp.

double resolution

static

Definition at line 99 of file whrt.cpp.

volatile TimerState* volatile ts = &timerStates[0]

static

Definition at line 187 of file whrt.cpp.

volatile TimerState* volatile ts2 = &timerStates[1]

static

Definition at line 188 of file whrt.cpp.

const DWORD UPDATE_INTERVAL_MS = 1000

static

Definition at line 235 of file whrt.cpp.