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6a6cafbe8d
building against a wider range of kernels. git-svn-id: https://outreach.scidac.gov/svn/spl/trunk@152 7e1ea52c-4ff2-0310-8f11-9dd32ca42a1c
93 lines
2.6 KiB
C
93 lines
2.6 KiB
C
/*
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* This file is part of the SPL: Solaris Porting Layer.
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*
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* Copyright (c) 2008 Lawrence Livermore National Security, LLC.
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* Produced at Lawrence Livermore National Laboratory
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* Written by:
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* Brian Behlendorf <behlendorf1@llnl.gov>,
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* Herb Wartens <wartens2@llnl.gov>,
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* Jim Garlick <garlick@llnl.gov>
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* UCRL-CODE-235197
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*
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* This 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
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This 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 this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include <sys/sysmacros.h>
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#include <sys/time.h>
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#ifdef DEBUG_SUBSYSTEM
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#undef DEBUG_SUBSYSTEM
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#endif
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#define DEBUG_SUBSYSTEM S_TIME
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void
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__gethrestime(timestruc_t *ts)
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{
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getnstimeofday((struct timespec *)ts);
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}
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EXPORT_SYMBOL(__gethrestime);
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int
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__clock_gettime(clock_type_t type, timespec_t *tp)
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{
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/* Only support CLOCK_REALTIME+__CLOCK_REALTIME0 for now */
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ASSERT((type == CLOCK_REALTIME) || (type == __CLOCK_REALTIME0));
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getnstimeofday(tp);
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return 0;
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}
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EXPORT_SYMBOL(__clock_gettime);
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/* This function may not be as fast as using monotonic_clock() but it
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* should be much more portable, if performance becomes as issue we can
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* look at using monotonic_clock() for x86_64 and x86 arches.
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*/
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hrtime_t
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__gethrtime(void) {
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timespec_t tv;
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hrtime_t rc;
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do_posix_clock_monotonic_gettime(&tv);
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rc = (NSEC_PER_SEC * (hrtime_t)tv.tv_sec) + (hrtime_t)tv.tv_nsec;
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return rc;
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}
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EXPORT_SYMBOL(__gethrtime);
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/* set_normalized_timespec() API changes
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* 2.6.0 - 2.6.15: Inline function provided by linux/time.h
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* 2.6.16 - 2.6.25: Function prototypedefined but not exported
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* 2.6.26 - 2.6.x: Function defined and exported
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*/
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#if !defined(HAVE_SET_NORMALIZED_TIMESPEC_INLINE) && \
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!defined(HAVE_SET_NORMALIZED_TIMESPEC_EXPORT)
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void
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set_normalized_timespec(struct timespec *ts, time_t sec, long nsec)
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{
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while (nsec >= NSEC_PER_SEC) {
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nsec -= NSEC_PER_SEC;
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++sec;
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}
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while (nsec < 0) {
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nsec += NSEC_PER_SEC;
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--sec;
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}
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ts->tv_sec = sec;
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ts->tv_nsec = nsec;
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}
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EXPORT_SYMBOL(set_normalized_timespec);
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#endif
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