projects / lttng-tools.git / blame
| Commit | Line | Data |
|---|---|---|
| 395d6b02 JG |
1 | /* |
| 2 | * Copyright (C) 2016 - Jérémie Galarneau <jeremie.galarneau@efficios.com> | |
| 3 | * | |
| 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. | |
| 8 | * | |
| 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. | |
| 13 | * | |
| 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 | |
| 17 | */ | |
| 18 | ||
| 19 | #ifndef LTTNG_TIME_H | |
| 20 | #define LTTNG_TIME_H | |
| 21 | ||
| 2daf6502 MD |
22 | #include <time.h> |
| 23 | ||
| 395d6b02 JG |
24 | #define MSEC_PER_SEC 1000ULL |
| 25 | #define NSEC_PER_SEC 1000000000ULL | |
| 26 | #define NSEC_PER_MSEC 1000000ULL | |
| 27 | #define NSEC_PER_USEC 1000ULL | |
| 28 | ||
| 2daf6502 MD |
29 | /* |
| 30 | * timespec_to_ms: Convert timespec to milliseconds. | |
| 31 | * | |
| 32 | * Returns 0 on success, else -1 on error. errno is set to EOVERFLOW if | |
| 33 | * input would overflow the output in milliseconds. | |
| 34 | */ | |
| 35 | int timespec_to_ms(struct timespec ts, unsigned long *ms); | |
| 36 | ||
| 37 | /* | |
| 38 | * timespec_abs_diff: Absolute difference between timespec. | |
| 39 | */ | |
| 40 | struct timespec timespec_abs_diff(struct timespec ts_a, struct timespec ts_b); | |
| 41 | ||
| 395d6b02 | 42 | #endif /* LTTNG_TIME_H */ |