1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
|
/* 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
# define STAT_TIMESPEC(st, st_xtim) ((st)->st_xtim)
#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
|
