510ea843ba
A nice thing about POSIX 2008 is that it finally standardizes a way to obtain file access/modification/change times in sub-second precision, namely using struct timespec, which we already have for a very long time. Unfortunately POSIX uses different names. This commit adds compatibility macros, so existing code should still build properly. Also change all source code in the kernel to work without any of the compatibility macros. This makes it all a less ambiguous. I am also renaming st_birthtime to st_birthtim, even though it was a local extension anyway. It seems Cygwin also has a st_birthtim.
64 lines
2.4 KiB
C
64 lines
2.4 KiB
C
/*-
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* Copyright (c) 1982, 1986, 1993
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* The Regents of the University of California. 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, this list of conditions and the following 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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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)time.h 8.5 (Berkeley) 5/4/95
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* from: FreeBSD: src/sys/sys/time.h,v 1.43 2000/03/20 14:09:05 phk Exp
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* $FreeBSD$
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*/
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#ifndef _SYS_TIMESPEC_H_
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#define _SYS_TIMESPEC_H_
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#include <sys/cdefs.h>
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#include <sys/_timespec.h>
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#if __BSD_VISIBLE
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#define TIMEVAL_TO_TIMESPEC(tv, ts) \
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do { \
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(ts)->tv_sec = (tv)->tv_sec; \
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(ts)->tv_nsec = (tv)->tv_usec * 1000; \
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} while (0)
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#define TIMESPEC_TO_TIMEVAL(tv, ts) \
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do { \
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(tv)->tv_sec = (ts)->tv_sec; \
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(tv)->tv_usec = (ts)->tv_nsec / 1000; \
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} while (0)
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#endif /* __BSD_VISIBLE */
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/*
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* Structure defined by POSIX.1b to be like a itimerval, but with
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* timespecs. Used in the timer_*() system calls.
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*/
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struct itimerspec {
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struct timespec it_interval;
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struct timespec it_value;
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};
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#endif /* _SYS_TIMESPEC_H_ */
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