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/*
* RTLinux time support
*
* Written by Michael Barabanov
* Copyright (C) Finite State Machine Labs Inc., 1999
* Released under the terms of the GPL Version 2
*
*/
#ifndef __RTL_TIME_H__
#define __RTL_TIME_H__
#include <rtl_sched.h>
#include <rtl_time.h>
#include <errno.h>
extern clockid_t CLOCK_UST; /* unadjusted system time */
#define CLOCK_MONOTONIC CLOCK_UST
/* we may need to move these to the scheduler so that it could take
* some actions when clock is adjusted (expire timers etc) */
static inline int clock_gettime(clockid_t clock_id, struct timespec *tp)
{
hrtime_t t = clock_id->gethrtime(clock_id);
if (t == (hrtime_t) -1) {
__set_errno(EINVAL);
return -1;
}
*tp = timespec_from_ns (t);
return 0;
}
static inline int clock_settime(clockid_t clock_id, const struct timespec *tp)
{
int ret = clock_id->sethrtime (clock_id, timespec_to_ns (tp));
if (ret < 0) {
__set_errno(-ret);
return -1;
}
return 0;
}
static inline int clock_getres(clockid_t clock_id, struct timespec *res)
{
if (res != NULL) {
*res = timespec_from_ns (clock_id->resolution);
}
return 0;
}
static inline time_t time(time_t *tloc)
{
struct timespec ts;
hrtime_t t = clock_gethrtime(CLOCK_REALTIME);
ts = timespec_from_ns (t);
if (tloc) {
*tloc = ts.tv_sec;
}
return ts.tv_sec;
}
#endif
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