pfc::hires_timer

#include <timers.h>

Public Member Functions
	hires_timer ()
	hires_timer ()
double	query () const
double	query () const
double	query_reset ()
double	query_reset ()
pfc::string8	queryString (unsigned precision=6)
pfc::string8	queryString (unsigned precision=3)
void	start ()
void	start ()

Private Member Functions
double	_query (t_uint64 p_val) const

Static Private Member Functions
static t_uint64	g_query ()
static t_uint64	g_query_freq ()

Private Attributes
t_uint64	m_start
double	m_start

Detailed Description

Definition at line 55 of file timers.h.

Constructor & Destructor Documentation

pfc::hires_timer::hires_timer ( )

inline

Definition at line 57 of file timers.h.

: m_start() {}

pfc::hires_timer::hires_timer ( )

inline

Definition at line 138 of file timers.h.

: m_start() {}

Member Function Documentation

double pfc::hires_timer::_query ( t_uint64  p_val ) const

inlineprivate

Definition at line 74 of file timers.h.

                                        {
        return (double)( p_val - m_start ) / (double) g_query_freq();
    }

static t_uint64 pfc::hires_timer::g_query ( )

inlinestaticprivate

Definition at line 77 of file timers.h.

                              {
        LARGE_INTEGER val;
        if (!QueryPerformanceCounter(&val)) throw pfc::exception_not_implemented();
        return val.QuadPart;
    }

static t_uint64 pfc::hires_timer::g_query_freq ( )

inlinestaticprivate

Definition at line 82 of file timers.h.

                                   {
        LARGE_INTEGER val;
        if (!QueryPerformanceFrequency(&val)) throw pfc::exception_not_implemented();
        return val.QuadPart;
    }

double pfc::hires_timer::query ( ) const

inline

Definition at line 61 of file timers.h.

                         {
        return _query( g_query() );
    }

double pfc::hires_timer::query

(

)

const

double pfc::hires_timer::query_reset ( )

inline

Definition at line 64 of file timers.h.

                         {
        t_uint64 current = g_query();
        double ret = _query(current);
        m_start = current;
        return ret;
    }

double pfc::hires_timer::query_reset

(

)

pfc::string8 pfc::hires_timer::queryString ( unsigned  precision = 6 )

inline

Definition at line 70 of file timers.h.

                                                   {
        return pfc::format_time_ex( query(), precision ).get_ptr();
    }

pfc::string8 pfc::hires_timer::queryString

(

unsigned

precision = 3

)

void pfc::hires_timer::start ( )

inline

Definition at line 58 of file timers.h.

                 {
        m_start = g_query();
    }

void pfc::hires_timer::start

(

)

Field Documentation

t_uint64 pfc::hires_timer::m_start

private

Definition at line 87 of file timers.h.

double pfc::hires_timer::m_start

private

Definition at line 144 of file timers.h.

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

• pfc/timers.h
• pfc/timers.cpp