timer.h File Reference

Timers. More...

#include <arch/platform.h>
#include <stdint.h>
#include <time.h>

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Typedefs
typedef uint_fast64_t	timer_uint

Functions
static timer_uint	timer_new (void)
	Get a new starting point for an time interval measure. More...
static timer_uint	timer_value (timer_uint start)
	Compute a time interval measure using a previous timer_uint value. More...
static timer_uint	timer_hr_new (void)
	Start a high resolution, CPU dependent time interval measure. More...
static timer_uint	timer_hr_value (timer_uint start)
	Compute a time interval measure using a previous timer_uint value. More...

Detailed Description

Timers.

This header defines the timers which the simulator uses to monitor its internal behaviour

Copyright

Copyright (C) 2008-2022 HPDCS Group https://hpdcs.github.io

Typedef Documentation

timer_uint

typedef uint_fast64_t timer_uint

The type used to store results of timer related calls

Function Documentation

timer_hr_new()

timer_hr_new ( void  )

inlinestatic

Start a high resolution, CPU dependent time interval measure.

Returns

a timer_uint value, a not meaningful value by itself

The returned value can be used in conjunction with timer_hr_value() to measure a time interval with unspecified resolution

timer_hr_value()

static timer_uint timer_hr_value ( timer_uint  start )

inlinestatic

Compute a time interval measure using a previous timer_uint value.

Parameters

start

a timer_uint value obtained from a previous timer_hr_new() call

Returns

a timer_uint value, a measure of the time interval

timer_new()

static timer_uint timer_new ( void  )

inlinestatic

Get a new starting point for an time interval measure.

Returns

a timer_uint value, a not meaningful value by itself

The returned value can be used in conjunction with timer_value() to measure a time interval with microsecond resolution

timer_value()

static timer_uint timer_value ( timer_uint  start )

inlinestatic

Compute a time interval measure using a previous timer_uint value.

Parameters

start

a timer_uint value obtained from a previous timer_new() call

Returns

a timer_uint value, the count of microseconds of the time interval