sys_time_arch.h File Reference

linux timing functions More...

#include "std.h"
#include <unistd.h>

Include dependency graph for sys_time_arch.h:

Go to the source code of this file.

Functions
static uint32_t	get_sys_time_usec (void)
	Get the time in microseconds since startup. More...
static uint32_t	get_sys_time_msec (void)
	Get the time in milliseconds since startup. More...
static void	sys_time_usleep (uint32_t us)
static unsigned int	sys_time_elapsed_us (struct timespec *prev, struct timespec *now)
	elapsed time in microsecs between two timespecs More...

Detailed Description

linux timing functions

Definition in file sys_time_arch.h.

Function Documentation

static uint32_t get_sys_time_msec ( void  )

inlinestatic

Get the time in milliseconds since startup.

Returns

milliseconds since startup as uint32_t

Definition at line 49 of file sys_time_arch.h.

References msec_of_cpu_ticks(), sys_time::nb_sec, and sys_time::nb_sec_rem.

Here is the call graph for this function:

static uint32_t get_sys_time_usec ( void  )

inlinestatic

Get the time in microseconds since startup.

WARNING: overflows after 71min34seconds!

Returns

current system time as uint32_t

Definition at line 39 of file sys_time_arch.h.

References sys_time::nb_sec, sys_time::nb_sec_rem, and usec_of_cpu_ticks().

Here is the call graph for this function:

static unsigned int sys_time_elapsed_us ( struct timespec *  prev, struct timespec *  now  )

inlinestatic

elapsed time in microsecs between two timespecs

Definition at line 61 of file sys_time_arch.h.

Referenced by video_thread_function().

Here is the caller graph for this function:

static void sys_time_usleep ( uint32_t  us )

inlinestatic

Definition at line 55 of file sys_time_arch.h.