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/*
* Copyright (C) 2007-2010 Lawrence Livermore National Security, LLC.
* Copyright (C) 2007 The Regents of the University of California.
* Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER).
* Written by Brian Behlendorf <behlendorf1@llnl.gov>.
* UCRL-CODE-235197
*
* This file is part of the SPL, Solaris Porting Layer.
* For details, see <http://zfsonlinux.org/>.
*
* The SPL is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
* The SPL is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*
* You should have received a copy of the GNU General Public License along
* with the SPL. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _SPL_TIME_H
#define _SPL_TIME_H
#include <linux/module.h>
#include <linux/time.h>
#include <sys/types.h>
#include <sys/timer.h>
#if defined(CONFIG_64BIT)
#define TIME_MAX INT64_MAX
#define TIME_MIN INT64_MIN
#else
#define TIME_MAX INT32_MAX
#define TIME_MIN INT32_MIN
#endif
#define SEC 1
#define MILLISEC 1000
#define MICROSEC 1000000
#define NANOSEC 1000000000
#define MSEC2NSEC(m) ((hrtime_t)(m) * (NANOSEC / MILLISEC))
#define NSEC2MSEC(n) ((n) / (NANOSEC / MILLISEC))
#define USEC2NSEC(m) ((hrtime_t)(m) * (NANOSEC / MICROSEC))
#define NSEC2USEC(n) ((n) / (NANOSEC / MICROSEC))
#define NSEC2SEC(n) ((n) / (NANOSEC / SEC))
#define SEC2NSEC(m) ((hrtime_t)(m) * (NANOSEC / SEC))
static const int hz = HZ;
#define TIMESPEC_OVERFLOW(ts) \
((ts)->tv_sec < TIME_MIN || (ts)->tv_sec > TIME_MAX)
static inline void
gethrestime(timestruc_t *now)
{
*now = current_kernel_time();
}
static inline time_t
gethrestime_sec(void)
{
struct timespec ts;
ts = current_kernel_time();
return (ts.tv_sec);
}
static inline hrtime_t
gethrtime(void)
{
struct timespec now;
getrawmonotonic(&now);
return (((hrtime_t)now.tv_sec * NSEC_PER_SEC) + now.tv_nsec);
}
#endif /* _SPL_TIME_H */
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