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/* $OpenBSD: ktime.h,v 1.3 2020/06/29 08:42:00 jsg Exp $ */
/*
* Copyright (c) 2013, 2014, 2015 Mark Kettenis
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#ifndef _LINUX_KTIME_H
#define _LINUX_KTIME_H
#include <sys/time.h>
#include <linux/time.h>
#include <linux/jiffies.h>
typedef struct timeval ktime_t;
static inline struct timeval
ktime_get(void)
{
struct timeval tv;
getmicrouptime(&tv);
return tv;
}
static inline struct timeval
ktime_get_raw(void)
{
struct timeval tv;
microuptime(&tv);
return tv;
}
static inline int64_t
ktime_to_ms(struct timeval tv)
{
return timeval_to_ms(&tv);
}
static inline int64_t
ktime_to_us(struct timeval tv)
{
return timeval_to_us(&tv);
}
static inline int64_t
ktime_to_ns(struct timeval tv)
{
return timeval_to_ns(&tv);
}
static inline int64_t
ktime_get_raw_ns(void)
{
return ktime_to_ns(ktime_get());
}
static inline struct timespec64
ktime_to_timespec64(struct timeval tv)
{
struct timespec64 ts;
ts.tv_sec = tv.tv_sec;
ts.tv_nsec = tv.tv_usec * NSEC_PER_USEC;
return ts;
}
static inline struct timeval
ktime_sub(struct timeval a, struct timeval b)
{
struct timeval res;
timersub(&a, &b, &res);
return res;
}
static inline struct timeval
ktime_add(struct timeval a, struct timeval b)
{
struct timeval res;
timeradd(&a, &b, &res);
return res;
}
static inline struct timeval
ktime_add_us(struct timeval tv, int64_t us)
{
return ns_to_timeval(timeval_to_ns(&tv) + (us * NSEC_PER_USEC));
}
static inline struct timeval
ktime_add_ns(struct timeval tv, int64_t ns)
{
return ns_to_timeval(timeval_to_ns(&tv) + ns);
}
static inline struct timeval
ktime_sub_ns(struct timeval tv, int64_t ns)
{
return ns_to_timeval(timeval_to_ns(&tv) - ns);
}
static inline int64_t
ktime_us_delta(struct timeval a, struct timeval b)
{
return ktime_to_us(ktime_sub(a, b));
}
static inline int64_t
ktime_ms_delta(struct timeval a, struct timeval b)
{
return ktime_to_ms(ktime_sub(a, b));
}
static inline bool
ktime_after(const struct timeval a, const struct timeval b)
{
return timercmp(&a, &b, >);
}
static inline struct timeval
ns_to_ktime(uint64_t ns)
{
return ns_to_timeval(ns);
}
#include <linux/timekeeping.h>
#endif
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