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e65fc94b LC |
1 | /* A more-standard <time.h>. |
2 | ||
25361e4b | 3 | Copyright (C) 2007-2009 Free Software Foundation, Inc. |
e65fc94b LC |
4 | |
5 | This program is free software; you can redistribute it and/or modify | |
6 | it under the terms of the GNU Lesser General Public License as published by | |
7 | the Free Software Foundation; either version 2, or (at your option) | |
8 | any later version. | |
9 | ||
10 | This program is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | GNU Lesser General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU Lesser General Public License | |
16 | along with this program; if not, write to the Free Software Foundation, | |
17 | Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ | |
18 | ||
aa7a939c | 19 | #if __GNUC__ >= 3 |
e65fc94b | 20 | @PRAGMA_SYSTEM_HEADER@ |
aa7a939c | 21 | #endif |
e65fc94b LC |
22 | |
23 | /* Don't get in the way of glibc when it includes time.h merely to | |
24 | declare a few standard symbols, rather than to declare all the | |
25 | symbols. Also, Solaris 8 <time.h> eventually includes itself | |
26 | recursively; if that is happening, just include the system <time.h> | |
27 | without adding our own declarations. */ | |
28 | #if (defined __need_time_t || defined __need_clock_t \ | |
29 | || defined __need_timespec \ | |
30 | || defined _GL_TIME_H) | |
31 | ||
32 | # @INCLUDE_NEXT@ @NEXT_TIME_H@ | |
33 | ||
34 | #else | |
35 | ||
36 | # define _GL_TIME_H | |
37 | ||
38 | # @INCLUDE_NEXT@ @NEXT_TIME_H@ | |
39 | ||
40 | # ifdef __cplusplus | |
41 | extern "C" { | |
42 | # endif | |
43 | ||
44 | /* Some systems don't define struct timespec (e.g., AIX 4.1, Ultrix 4.3). | |
45 | Or they define it with the wrong member names or define it in <sys/time.h> | |
46 | (e.g., FreeBSD circa 1997). */ | |
47 | # if ! @TIME_H_DEFINES_STRUCT_TIMESPEC@ | |
48 | # if @SYS_TIME_H_DEFINES_STRUCT_TIMESPEC@ | |
49 | # include <sys/time.h> | |
50 | # else | |
51 | # undef timespec | |
52 | # define timespec rpl_timespec | |
53 | struct timespec | |
54 | { | |
55 | time_t tv_sec; | |
56 | long int tv_nsec; | |
57 | }; | |
58 | # endif | |
59 | # endif | |
60 | ||
61 | /* Sleep for at least RQTP seconds unless interrupted, If interrupted, | |
62 | return -1 and store the remaining time into RMTP. See | |
63 | <http://www.opengroup.org/susv3xsh/nanosleep.html>. */ | |
64 | # if @REPLACE_NANOSLEEP@ | |
65 | # define nanosleep rpl_nanosleep | |
66 | int nanosleep (struct timespec const *__rqtp, struct timespec *__rmtp); | |
67 | # endif | |
68 | ||
25361e4b LC |
69 | /* Return the 'time_t' representation of TP and normalize TP. */ |
70 | # if @REPLACE_MKTIME@ | |
71 | # define mktime rpl_mktime | |
72 | extern time_t mktime (struct tm *__tp); | |
73 | # endif | |
74 | ||
e65fc94b LC |
75 | /* Convert TIMER to RESULT, assuming local time and UTC respectively. See |
76 | <http://www.opengroup.org/susv3xsh/localtime_r.html> and | |
77 | <http://www.opengroup.org/susv3xsh/gmtime_r.html>. */ | |
78 | # if @REPLACE_LOCALTIME_R@ | |
79 | # undef localtime_r | |
80 | # define localtime_r rpl_localtime_r | |
81 | # undef gmtime_r | |
82 | # define gmtime_r rpl_gmtime_r | |
83 | struct tm *localtime_r (time_t const *restrict __timer, | |
84 | struct tm *restrict __result); | |
85 | struct tm *gmtime_r (time_t const *restrict __timer, | |
86 | struct tm *restrict __result); | |
87 | # endif | |
88 | ||
89 | /* Parse BUF as a time stamp, assuming FORMAT specifies its layout, and store | |
90 | the resulting broken-down time into TM. See | |
91 | <http://www.opengroup.org/susv3xsh/strptime.html>. */ | |
92 | # if @REPLACE_STRPTIME@ | |
93 | # undef strptime | |
94 | # define strptime rpl_strptime | |
95 | char *strptime (char const *restrict __buf, char const *restrict __format, | |
96 | struct tm *restrict __tm); | |
97 | # endif | |
98 | ||
99 | /* Convert TM to a time_t value, assuming UTC. */ | |
100 | # if @REPLACE_TIMEGM@ | |
101 | # undef timegm | |
102 | # define timegm rpl_timegm | |
103 | time_t timegm (struct tm *__tm); | |
104 | # endif | |
105 | ||
106 | /* Encourage applications to avoid unsafe functions that can overrun | |
107 | buffers when given outlandish struct tm values. Portable | |
108 | applications should use strftime (or even sprintf) instead. */ | |
109 | # if GNULIB_PORTCHECK | |
110 | # undef asctime | |
111 | # define asctime eschew_asctime | |
112 | # undef asctime_r | |
113 | # define asctime_r eschew_asctime_r | |
114 | # undef ctime | |
115 | # define ctime eschew_ctime | |
116 | # undef ctime_r | |
117 | # define ctime_r eschew_ctime_r | |
118 | # endif | |
119 | ||
120 | # ifdef __cplusplus | |
121 | } | |
122 | # endif | |
123 | ||
124 | #endif |