timer.cpp File Reference

#include "precompiled.h"
#include "lib/timer.h"
#include <sstream>
#include <numeric>
#include <cmath>
#include <cfloat>
#include <cstdarg>
#include "lib/module_init.h"
#include "lib/posix/posix_pthread.h"
#include "lib/posix/posix_time.h"
#include "lib/sysdep/cpu.h"

Go to the source code of this file.

Macros
#define	HAVE_GETTIMEOFDAY   0
#define	HAVE_CLOCK_GETTIME   0

Functions
void	timer_LatchStartTime ()
	timer_Time will subsequently return values relative to the current time. More...
static void	EnsureMonotonic (double &newTime)
double	timer_Time ()
static Status	InitResolution ()
double	timer_Resolution ()
TimerClient *	timer_AddClient (TimerClient *tc, const wchar_t *description)
	make the given TimerClient (usually instantiated as static data) ready for use. More...
void	timer_DisplayClientTotals ()
	display all clients' totals; does not reset them. More...
std::wstring	StringForSeconds (double seconds)
	internal helper functions for returning an easily readable string (i.e. More...
std::wstring	StringForCycles (Cycles cycles)

Variables
static pthread_mutex_t	ensure_monotonic_mutex = PTHREAD_MUTEX_INITIALIZER
static double	resolution
static size_t	numClients
static TimerClient *	clients

Macro Definition Documentation

#define HAVE_CLOCK_GETTIME   0

Definition at line 56 of file timer.cpp.

#define HAVE_GETTIMEOFDAY   0

Definition at line 50 of file timer.cpp.

Function Documentation

static void EnsureMonotonic ( double &  newTime )

static

Definition at line 88 of file timer.cpp.

static Status InitResolution ( )

static

Definition at line 126 of file timer.cpp.

std::wstring StringForCycles

(

Cycles

cycles

)

Definition at line 220 of file timer.cpp.

std::wstring StringForSeconds

(

double

seconds

)

internal helper functions for returning an easily readable string (i.e.

re-scaled to appropriate units)

Definition at line 204 of file timer.cpp.

TimerClient* timer_AddClient	(	TimerClient *	tc,
		const wchar_t *	description
	)

make the given TimerClient (usually instantiated as static data) ready for use.

returns its address for TIMER_ADD_CLIENT's convenience. this client's total (which is increased by a BillingPolicy) will be displayed by timer_DisplayClientTotals. notes:

• may be called at any time;
• always succeeds (there's no fixed limit);
• free() is not needed nor possible.
• description must remain valid until exit; a string literal is safest.

Definition at line 166 of file timer.cpp.

void timer_DisplayClientTotals

(

)

display all clients' totals; does not reset them.

typically called at exit.

Definition at line 181 of file timer.cpp.

void timer_LatchStartTime

(

)

timer_Time will subsequently return values relative to the current time.

Definition at line 74 of file timer.cpp.

double timer_Resolution

(

)

Returns

resolution [s] of the timer.

Definition at line 145 of file timer.cpp.

double timer_Time

(

)

Returns

high resolution (> 1 us) timestamp [s].

Definition at line 98 of file timer.cpp.

Variable Documentation

TimerClient* clients

static

Definition at line 163 of file timer.cpp.

pthread_mutex_t ensure_monotonic_mutex = PTHREAD_MUTEX_INITIALIZER

static

Definition at line 85 of file timer.cpp.

size_t numClients

static

Definition at line 162 of file timer.cpp.

double resolution

static

Definition at line 124 of file timer.cpp.