2 * Copyright (C) 2016 - Jérémie Galarneau <jeremie.galarneau@efficios.com>
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with this library; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
24 #define MSEC_PER_SEC 1000ULL
25 #define NSEC_PER_SEC 1000000000ULL
26 #define NSEC_PER_MSEC 1000000ULL
27 #define NSEC_PER_USEC 1000ULL
30 * timespec_to_ms: Convert timespec to milliseconds.
32 * Returns 0 on success, else -1 on error. errno is set to EOVERFLOW if
33 * input would overflow the output in milliseconds.
35 int timespec_to_ms(struct timespec ts
, unsigned long *ms
);
38 * timespec_abs_diff: Absolute difference between timespec.
40 struct timespec
timespec_abs_diff(struct timespec ts_a
, struct timespec ts_b
);
42 #endif /* LTTNG_TIME_H */
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