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/*
* This file and its contents are supplied under the terms of the
* Common Development and Distribution License ("CDDL"), version 1.0.
* You may only use this file in accordance with the terms of version
* 1.0 of the CDDL.
*
* A full copy of the text of the CDDL should have accompanied this
* source. A copy of the CDDL is also available via the Internet at
* http://www.illumos.org/license/CDDL.
*/
/*
* Copyright 2017 Nexenta Systems, Inc. All rights reserved.
*/
#include <sys/types.h>
#include <sys/time.h>
#include <sys/thread.h>
#include <sys/proc.h>
#include <sys/poll.h>
#include <time.h>
int hz = 1000;
int tick_per_msec = 0;
int msec_per_tick = 1;
int usec_per_tick = 1000;
int nsec_per_tick = 1000000;
time_t boot_time = 0;
#pragma init(_boot_time_init)
static int
_boot_time_init(void)
{
boot_time = time(NULL);
return (0);
}
clock_t
ddi_get_lbolt(void)
{
hrtime_t hrt;
hrt = gethrtime();
return (hrt / nsec_per_tick);
}
int64_t
ddi_get_lbolt64(void)
{
hrtime_t hrt;
hrt = gethrtime();
return (hrt / nsec_per_tick);
}
hrtime_t
gethrtime_unscaled(void)
{
return (gethrtime());
}
void
gethrestime(timespec_t *ts)
{
struct timeval tv;
(void) gettimeofday(&tv, NULL);
ts->tv_sec = tv.tv_sec;
ts->tv_nsec = tv.tv_usec * 1000;
}
time_t
gethrestime_sec(void)
{
return (time(NULL));
}
/* ARGSUSED */
void
scalehrtime(hrtime_t *t)
{
}
/*
* These functions are blatently stolen from the kernel.
* See the dissertation in the comments preceding the
* hrt2ts() and ts2hrt() functions in:
* uts/common/os/timers.c
*/
void
hrt2ts(hrtime_t hrt, timespec_t *tsp)
{
uint32_t sec, nsec, tmp;
tmp = (uint32_t)(hrt >> 30);
sec = tmp - (tmp >> 2);
sec = tmp - (sec >> 5);
sec = tmp + (sec >> 1);
sec = tmp - (sec >> 6) + 7;
sec = tmp - (sec >> 3);
sec = tmp + (sec >> 1);
sec = tmp + (sec >> 3);
sec = tmp + (sec >> 4);
tmp = (sec << 7) - sec - sec - sec;
tmp = (tmp << 7) - tmp - tmp - tmp;
tmp = (tmp << 7) - tmp - tmp - tmp;
nsec = (uint32_t)hrt - (tmp << 9);
while (nsec >= NANOSEC) {
nsec -= NANOSEC;
sec++;
}
tsp->tv_sec = (time_t)sec;
tsp->tv_nsec = nsec;
}
hrtime_t
ts2hrt(const timestruc_t *tsp)
{
hrtime_t hrt;
hrt = tsp->tv_sec;
hrt = (hrt << 7) - hrt - hrt - hrt;
hrt = (hrt << 7) - hrt - hrt - hrt;
hrt = (hrt << 7) - hrt - hrt - hrt;
hrt = (hrt << 9) + tsp->tv_nsec;
return (hrt);
}
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