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72 lines
2.1 KiB
C
72 lines
2.1 KiB
C
/* timespec -- System time interface
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Copyright (C) 2000, 2002, 2004, 2005 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software Foundation,
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Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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#if ! defined TIMESPEC_H
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# define TIMESPEC_H
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/* You must include config.h before including this file. */
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# include <sys/types.h>
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# if TIME_WITH_SYS_TIME
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# include <sys/time.h>
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# include <time.h>
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# else
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# if HAVE_SYS_TIME_H
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# include <sys/time.h>
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# else
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# include <time.h>
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# endif
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# endif
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# if ! HAVE_STRUCT_TIMESPEC
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/* Some systems don't define this struct, e.g., AIX 4.1, Ultrix 4.3. */
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struct timespec
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{
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time_t tv_sec;
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long tv_nsec;
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};
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# endif
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# ifdef ST_MTIM_NSEC
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# define ST_TIME_CMP_NS(a, b, ns) ((a).ns < (b).ns ? -1 : (a).ns > (b).ns)
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# else
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# define ST_TIME_CMP_NS(a, b, ns) 0
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# endif
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# define ST_TIME_CMP(a, b, s, ns) \
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((a).s < (b).s ? -1 : (a).s > (b).s ? 1 : ST_TIME_CMP_NS(a, b, ns))
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# define ATIME_CMP(a, b) ST_TIME_CMP (a, b, st_atime, st_atim.ST_MTIM_NSEC)
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# define CTIME_CMP(a, b) ST_TIME_CMP (a, b, st_ctime, st_ctim.ST_MTIM_NSEC)
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# define MTIME_CMP(a, b) ST_TIME_CMP (a, b, st_mtime, st_mtim.ST_MTIM_NSEC)
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# ifdef ST_MTIM_NSEC
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# define TIMESPEC_NS(timespec) ((timespec).ST_MTIM_NSEC)
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# else
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# define TIMESPEC_NS(timespec) 0
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# endif
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# if ! HAVE_DECL_NANOSLEEP
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/* Don't specify a prototype here. Some systems (e.g., OSF) declare
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nanosleep with a conflicting one (const-less first parameter). */
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int nanosleep ();
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# endif
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void gettime (struct timespec *);
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int settime (struct timespec const *);
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#endif
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