docs: Add supported versions and fix-backport policy
[lttng-tools.git] / tests / utils / utils.h
1 /*
2 * Copyright (C) 2015 Jérémie Galarneau <jeremie.galarneau@efficios.com>
3 *
4 * SPDX-License-Identifier: LGPL-2.1-only
5 *
6 */
7
8 #ifndef TEST_UTILS_H
9 #define TEST_UTILS_H
10
11 #include <sys/types.h>
12 #include <unistd.h>
13
14 #if defined(__cplusplus)
15 extern "C" {
16 #endif
17
18 #if !defined(__GLIBC__) || \
19 ((_POSIX_C_SOURCE >= 200112L || _XOPEN_SOURCE >= 600) && !defined(_GNU_SOURCE))
20
21 /*
22 * Version using XSI strerror_r.
23 */
24 #define PERROR_NO_LOGGER(msg, args...) \
25 do { \
26 char _perror_buf[200]; \
27 strerror_r(errno, _perror_buf, sizeof(_perror_buf)); \
28 fprintf(stderr, msg ": %s\n", ##args, _perror_buf); \
29 } while (0);
30 #else
31 /*
32 * Version using GNU strerror_r, for linux with appropriate defines.
33 */
34 #define PERROR_NO_LOGGER(msg, args...) \
35 do { \
36 char *_perror_buf; \
37 char _perror_tmp[200]; \
38 _perror_buf = strerror_r(errno, _perror_tmp, sizeof(_perror_tmp)); \
39 fprintf(stderr, msg ": %s\n", ##args, _perror_buf); \
40 } while (0);
41 #endif
42
43 int usleep_safe(useconds_t usec);
44 int create_file(const char *path);
45 int wait_on_file(const char *path);
46 int64_t elapsed_time_ns(struct timespec *t1, struct timespec *t2);
47 #if defined(__cplusplus)
48 }
49 #endif
50
51 #endif /* TEST_UTILS_H */
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