STASIS
A pipeline delivery generator
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timespec.h
1/* Functions for working with timespec structures
2 * Written by Daniel Collins (2017-2021)
3 * timespec_mod by Alex Forencich (2019)
4 * Various contributions by Ingo Albrecht (2021)
5 *
6 * This is free and unencumbered software released into the public domain.
7 *
8 * Anyone is free to copy, modify, publish, use, compile, sell, or
9 * distribute this software, either in source code form or as a compiled
10 * binary, for any purpose, commercial or non-commercial, and by any
11 * means.
12 *
13 * In jurisdictions that recognize copyright laws, the author or authors
14 * of this software dedicate any and all copyright interest in the
15 * software to the public domain. We make this dedication for the benefit
16 * of the public at large and to the detriment of our heirs and
17 * successors. We intend this dedication to be an overt act of
18 * relinquishment in perpetuity of all present and future rights to this
19 * software under copyright law.
20 *
21 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
22 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
23 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
24 * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
25 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
26 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
27 * OTHER DEALINGS IN THE SOFTWARE.
28 *
29 * For more information, please refer to <http://unlicense.org/>
30*/
31
32#ifndef DAN_TIMESPEC_H
33#define DAN_TIMESPEC_H
34
35#include <stdbool.h>
36#include <sys/time.h>
37#include <time.h>
38
39#ifdef __cplusplus
40extern "C" {
41#endif
42
43struct timespec timespec_add(struct timespec ts1, struct timespec ts2);
44struct timespec timespec_sub(struct timespec ts1, struct timespec ts2);
45struct timespec timespec_mod(struct timespec ts1, struct timespec ts2);
46
47struct timespec timespec_min(struct timespec ts1, struct timespec ts2);
48struct timespec timespec_max(struct timespec ts1, struct timespec ts2);
49struct timespec timespec_clamp(struct timespec ts1, struct timespec min, struct timespec max);
50
51int timespec_cmp(struct timespec ts1, struct timespec ts2);
52bool timespec_eq(struct timespec ts1, struct timespec ts2);
53bool timespec_gt(struct timespec ts1, struct timespec ts2);
54bool timespec_ge(struct timespec ts1, struct timespec ts2);
55bool timespec_lt(struct timespec ts1, struct timespec ts2);
56bool timespec_le(struct timespec ts1, struct timespec ts2);
57
58struct timespec timespec_from_double(double s);
59double timespec_to_double(struct timespec ts);
60struct timespec timespec_from_timeval(struct timeval tv);
61struct timeval timespec_to_timeval(struct timespec ts);
62struct timespec timespec_from_ms(long milliseconds);
63long timespec_to_ms(struct timespec ts);
64
65struct timespec timespec_normalise(struct timespec ts);
66
67#ifdef __cplusplus
68}
69#endif
70
71#endif /* !DAN_TIMESPEC_H */
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