lib: Reset libbabeltrace2 to SONANE 0
[babeltrace.git] / include / babeltrace / compat / time-internal.h
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1#ifndef _BABELTRACE_INCLUDE_COMPAT_TIME_H
2#define _BABELTRACE_INCLUDE_COMPAT_TIME_H
3
4/*
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MJ
5 * Copyright (C) 2013 JP Ikaheimonen <jp_ikaheimonen@mentor.com>
6 * 2016 Michael Jeanson <mjeanson@efficios.com>
7 *
8 * Permission is hereby granted, free of charge, to any person obtaining a copy
9 * of this software and associated documentation files (the "Software"), to deal
10 * in the Software without restriction, including without limitation the rights
11 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
12 * copies of the Software, and to permit persons to whom the Software is
13 * furnished to do so, subject to the following conditions:
14 *
15 * The above copyright notice and this permission notice shall be included in
16 * all copies or substantial portions of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
21 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
22 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
23 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
24 * SOFTWARE.
25 */
26
27
28#include <time.h>
29#include <stdlib.h>
30
31#ifdef __MINGW32__
32
33#include <string.h>
34
35/*
36 * The Windows version of the time functions use one common tm structure per
37 * thread which makes them thread-safe. Implement the POSIX _r variants by
38 * copying this to a user supplied struct.
39 */
40
41static inline
42struct tm *bt_gmtime_r(const time_t *timep, struct tm *result)
43{
44 struct tm *local_res;
45
46 if (!result) {
47 goto error;
48 }
49
50 local_res = gmtime(timep);
51 if (!local_res) {
52 result = NULL;
53 goto error;
54 }
55
56 memcpy(result, local_res, sizeof(struct tm));
57
58error:
59 return result;
60}
61
62static inline
63struct tm *bt_localtime_r(const time_t *timep, struct tm *result)
64{
65 struct tm *local_res;
66
67 if (!result) {
68 goto error;
69 }
70
71 local_res = localtime(timep);
72 if (!local_res) {
73 result = NULL;
74 goto error;
75 }
76
77 memcpy(result, local_res, sizeof(struct tm));
78
79error:
80 return result;
81}
82
83#else /* __MINGW32__ */
84
85static inline
86struct tm *bt_gmtime_r(const time_t *timep, struct tm *result)
87{
88 return gmtime_r(timep, result);
89}
90
91static inline
92struct tm *bt_localtime_r(const time_t *timep, struct tm *result)
93{
94 return localtime_r(timep, result);
95}
96
97#endif /* __MINGW32__ */
98#endif /* _BABELTRACE_INCLUDE_COMPAT_TIME_H */
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