ktime.h File Reference

#include <linux/time.h>
#include <linux/jiffies.h>

Go to the source code of this file.

Data Structures
union	ktime

Macros
#define	LOW_RES_NSEC   TICK_NSEC
#define	KTIME_LOW_RES   (ktime_t){ .tv64 = LOW_RES_NSEC }
#define	ktime_get_real_ts(ts)   getnstimeofday(ts)

Typedefs
typedef union ktime	ktime_t

Functions
ktime_t	ktime_add_ns (const ktime_t kt, u64 nsec)
ktime_t	ktime_sub_ns (const ktime_t kt, u64 nsec)
ktime_t	ktime_add_safe (const ktime_t lhs, const ktime_t rhs)
void	ktime_get_ts (struct timespec *ts)

Macro Definition Documentation

#define ktime_get_real_ts

(

ts

)

getnstimeofday(ts)

Definition at line 327 of file ktime.h.

#define KTIME_LOW_RES   (ktime_t){ .tv64 = LOW_RES_NSEC }

Definition at line 321 of file ktime.h.

#define LOW_RES_NSEC   TICK_NSEC

Definition at line 320 of file ktime.h.

Typedef Documentation

typedef union ktime ktime_t

Definition at line 59 of file ktime.h.

Function Documentation

ktime_t ktime_add_ns	(	const ktime_t	kt,
		u64	nsec
	)

ktime_add_ns - Add a scalar nanoseconds value to a ktime_t variable : addend : the scalar nsec value to add

Returns the sum of and in ktime_t format

ktime_add_ns - Add a scalar nanoseconds value to a ktime_t variable : addend : the scalar nsec value to add

Returns the sum of kt and nsec in ktime_t format

Definition at line 267 of file hrtimer.c.

ktime_t ktime_add_safe	(	const ktime_t	lhs,
		const ktime_t	rhs
	)

Definition at line 333 of file hrtimer.c.

void ktime_get_ts

(

struct timespec *

ts

)

ktime_get_ts - get the monotonic clock in timespec format : pointer to timespec variable

The function calculates the monotonic clock from the realtime clock and the wall_to_monotonic offset and stores the result in normalized timespec format in the variable pointed to by .

Definition at line 279 of file timekeeping.c.

ktime_t ktime_sub_ns	(	const ktime_t	kt,
		u64	nsec
	)

ktime_sub_ns - Subtract a scalar nanoseconds value from a ktime_t variable : minuend : the scalar nsec value to subtract

Returns the subtraction of from in ktime_t format

Definition at line 291 of file hrtimer.c.