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-rw-r--r--lib/stat-time.h134
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diff --git a/lib/stat-time.h b/lib/stat-time.h
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-/* stat-related time functions.
-
- Copyright (C) 2005 Free Software Foundation, Inc.
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2, or (at your option)
- any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software Foundation,
- Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
-
-/* Written by Paul Eggert. */
-
-#ifndef STAT_TIME_H
-#define STAT_TIME_H 1
-
-#include "timespec.h"
-
-/* STAT_TIMESPEC (ST, ST_XTIM) is the ST_XTIM member for *ST of type
- struct timespec, if available. If not, then STAT_TIMESPEC_NS (ST,
- ST_XTIM) is the nanosecond component of the ST_XTIM member for *ST,
- if available. ST_XTIM can be st_atim, st_ctim, or st_mtim for
- access, status change, or data modification time, respectively.
-
- These macros are private to stat-time.h. */
-#if defined HAVE_STRUCT_STAT_ST_ATIM_TV_NSEC
-# ifdef TYPEOF_STRUCT_STAT_ST_ATIM_IS_STRUCT_TIMESPEC
-# define STAT_TIMESPEC(st, st_xtim) ((st)->st_xtim)
-# else
-# define STAT_TIMESPEC_NS(st, st_xtim) ((st)->st_xtim.tv_nsec)
-# endif
-#elif defined HAVE_STRUCT_STAT_ST_ATIMESPEC_TV_NSEC
-# define STAT_TIMESPEC(st, st_xtim) ((st)->st_xtim##espec)
-#elif defined HAVE_STRUCT_STAT_ST_ATIMENSEC
-# define STAT_TIMESPEC_NS(st, st_xtim) ((st)->st_xtim##ensec)
-#elif defined HAVE_STRUCT_STAT_ST_ATIM_ST__TIM_TV_NSEC
-# define STAT_TIMESPEC_NS(st, st_xtim) ((st)->st_xtim.st__tim.tv_nsec)
-#endif
-
-/* Return the nanosecond component of *ST's access time. */
-static inline long int
-get_stat_atime_ns (struct stat const *st)
-{
-# if defined STAT_TIMESPEC
- return STAT_TIMESPEC (st, st_atim).tv_nsec;
-# elif defined STAT_TIMESPEC_NS
- return STAT_TIMESPEC_NS (st, st_atim);
-# elif defined HAVE_STRUCT_STAT_ST_SPARE1
- return st->st_spare1 * 1000;
-# else
- return 0;
-# endif
-}
-
-/* Return the nanosecond component of *ST's status change time. */
-static inline long int
-get_stat_ctime_ns (struct stat const *st)
-{
-# if defined STAT_TIMESPEC
- return STAT_TIMESPEC (st, st_ctim).tv_nsec;
-# elif defined STAT_TIMESPEC_NS
- return STAT_TIMESPEC_NS (st, st_ctim);
-# elif defined HAVE_STRUCT_STAT_ST_SPARE1
- return st->st_spare3 * 1000;
-# else
- return 0;
-# endif
-}
-
-/* Return the nanosecond component of *ST's data modification time. */
-static inline long int
-get_stat_mtime_ns (struct stat const *st)
-{
-# if defined STAT_TIMESPEC
- return STAT_TIMESPEC (st, st_mtim).tv_nsec;
-# elif defined STAT_TIMESPEC_NS
- return STAT_TIMESPEC_NS (st, st_mtim);
-# elif defined HAVE_STRUCT_STAT_ST_SPARE1
- return st->st_spare2 * 1000;
-# else
- return 0;
-# endif
-}
-
-/* Return *ST's access time. */
-static inline struct timespec
-get_stat_atime (struct stat const *st)
-{
-#ifdef STAT_TIMESPEC
- return STAT_TIMESPEC (st, st_atim);
-#else
- struct timespec t;
- t.tv_sec = st->st_atime;
- t.tv_nsec = get_stat_atime_ns (st);
- return t;
-#endif
-}
-
-/* Return *ST's status change time. */
-static inline struct timespec
-get_stat_ctime (struct stat const *st)
-{
-#ifdef STAT_TIMESPEC
- return STAT_TIMESPEC (st, st_ctim);
-#else
- struct timespec t;
- t.tv_sec = st->st_ctime;
- t.tv_nsec = get_stat_ctime_ns (st);
- return t;
-#endif
-}
-
-/* Return *ST's data modification time. */
-static inline struct timespec
-get_stat_mtime (struct stat const *st)
-{
-#ifdef STAT_TIMESPEC
- return STAT_TIMESPEC (st, st_mtim);
-#else
- struct timespec t;
- t.tv_sec = st->st_mtime;
- t.tv_nsec = get_stat_mtime_ns (st);
- return t;
-#endif
-}
-
-#endif