6040822c4e
The timespecadd(3) family of macros were imported from NetBSD back in r35029. However, they were initially guarded by #ifdef _KERNEL. In the meantime, we have grown at least 28 syscalls that use timespecs in some way, leading many programs both inside and outside of the base system to redefine those macros. It's better just to make the definitions public. Our kernel currently defines two-argument versions of timespecadd and timespecsub. NetBSD, OpenBSD, and FreeDesktop.org's libbsd, however, define three-argument versions. Solaris also defines a three-argument version, but only in its kernel. This revision changes our definition to match the common three-argument version. Bump _FreeBSD_version due to the breaking KPI change. Discussed with: cem, jilles, ian, bde Differential Revision: https://reviews.freebsd.org/D14725
136 lines
3.2 KiB
C
136 lines
3.2 KiB
C
/*-
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* Copyright (c) 2014-2015 François Tigeot
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice unmodified, this list of conditions, and the following
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* disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _LINUX_TIME_H_
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#define _LINUX_TIME_H_
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#define NSEC_PER_USEC 1000L
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#define NSEC_PER_MSEC 1000000L
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#define NSEC_PER_SEC 1000000000L
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#define USEC_PER_MSEC 1000L
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#define USEC_PER_SEC 1000000L
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#define timespec64 timespec
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#include <sys/time.h>
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#include <sys/stdint.h>
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static inline struct timeval
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ns_to_timeval(const int64_t nsec)
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{
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struct timeval tv;
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long rem;
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if (nsec == 0) {
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tv.tv_sec = 0;
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tv.tv_usec = 0;
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return (tv);
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}
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tv.tv_sec = nsec / NSEC_PER_SEC;
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rem = nsec % NSEC_PER_SEC;
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if (rem < 0) {
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tv.tv_sec--;
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rem += NSEC_PER_SEC;
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}
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tv.tv_usec = rem / 1000;
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return (tv);
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}
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static inline int64_t
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timeval_to_ns(const struct timeval *tv)
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{
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return ((int64_t)tv->tv_sec * NSEC_PER_SEC) +
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tv->tv_usec * NSEC_PER_USEC;
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}
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#define getrawmonotonic(ts) nanouptime(ts)
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static inline struct timespec
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timespec_sub(struct timespec lhs, struct timespec rhs)
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{
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struct timespec ts;
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timespecsub(&lhs, &rhs, &ts);
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return ts;
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}
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static inline void
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set_normalized_timespec(struct timespec *ts, time_t sec, int64_t nsec)
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{
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/* XXX: this doesn't actually normalize anything */
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ts->tv_sec = sec;
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ts->tv_nsec = nsec;
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}
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static inline int64_t
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timespec_to_ns(const struct timespec *ts)
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{
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return ((ts->tv_sec * NSEC_PER_SEC) + ts->tv_nsec);
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}
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static inline struct timespec
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ns_to_timespec(const int64_t nsec)
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{
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struct timespec ts;
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int32_t rem;
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if (nsec == 0) {
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ts.tv_sec = 0;
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ts.tv_nsec = 0;
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return (ts);
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}
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ts.tv_sec = nsec / NSEC_PER_SEC;
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rem = nsec % NSEC_PER_SEC;
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if (rem < 0) {
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ts.tv_sec--;
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rem += NSEC_PER_SEC;
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}
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ts.tv_nsec = rem;
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return (ts);
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}
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static inline int
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timespec_valid(const struct timespec *ts)
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{
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if (ts->tv_sec < 0 || ts->tv_sec > 100000000 ||
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ts->tv_nsec < 0 || ts->tv_nsec >= 1000000000)
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return (0);
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return (1);
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}
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static inline unsigned long
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get_seconds(void)
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{
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return time_uptime;
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}
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#endif /* _LINUX_TIME_H_ */
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