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82f2f1a3af
Many of the time functions had grown overly complex in order to handle kernel compatibility issues. However, as of Linux 2.6.26 all the required functionality is available. This allows us to retire numerous configure checks and greatly simplify the time compatibility wrappers. Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
80 lines
2.2 KiB
C
80 lines
2.2 KiB
C
/*****************************************************************************\
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* Copyright (C) 2007-2010 Lawrence Livermore National Security, LLC.
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* Copyright (C) 2007 The Regents of the University of California.
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* Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER).
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* Written by Brian Behlendorf <behlendorf1@llnl.gov>.
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* UCRL-CODE-235197
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*
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* This file is part of the SPL, Solaris Porting Layer.
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* For details, see <http://zfsonlinux.org/>.
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*
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* The SPL is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*
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* The SPL is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with the SPL. If not, see <http://www.gnu.org/licenses/>.
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\*****************************************************************************/
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#ifndef _SPL_TIME_H
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#define _SPL_TIME_H
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#include <linux/module.h>
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#include <linux/time.h>
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#include <sys/types.h>
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#include <sys/timer.h>
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#if defined(CONFIG_64BIT)
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#define TIME_MAX INT64_MAX
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#define TIME_MIN INT64_MIN
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#else
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#define TIME_MAX INT32_MAX
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#define TIME_MIN INT32_MIN
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#endif
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#define SEC 1
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#define MILLISEC 1000
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#define MICROSEC 1000000
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#define NANOSEC 1000000000
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#define MSEC2NSEC(m) ((hrtime_t)(m) * (NANOSEC / MILLISEC))
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#define NSEC2MSEC(n) ((n) / (NANOSEC / MILLISEC))
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#define hz HZ
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#define TIMESPEC_OVERFLOW(ts) \
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((ts)->tv_sec < TIME_MIN || (ts)->tv_sec > TIME_MAX)
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static inline void
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gethrestime(timestruc_t *now)
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{
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struct timespec ts;
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getnstimeofday(&ts);
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now->tv_sec = ts.tv_sec;
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now->tv_nsec = ts.tv_nsec;
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}
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static inline time_t
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gethrestime_sec(void)
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{
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struct timespec ts;
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getnstimeofday(&ts);
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return (ts.tv_sec);
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}
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static inline hrtime_t
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gethrtime(void)
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{
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struct timespec now;
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getrawmonotonic(&now);
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return (((hrtime_t)now.tv_sec * NSEC_PER_SEC) + now.tv_nsec);
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}
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#endif /* _SPL_TIME_H */
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