projects / lttng-tools.git / blame
| Commit | Line | Data |
|---|---|---|
| 395d6b02 | 1 | /* |
| ab5be9fa | 2 | * Copyright (C) 2016 Jérémie Galarneau <jeremie.galarneau@efficios.com> |
| 395d6b02 | 3 | * |
| ab5be9fa | 4 | * SPDX-License-Identifier: LGPL-2.1-or-later |
| 395d6b02 | 5 | * |
| 395d6b02 JG |
6 | */ |
| 7 | ||
| 8 | #ifndef LTTNG_TIME_H | |
| 9 | #define LTTNG_TIME_H | |
| 10 | ||
| 2daf6502 | 11 | #include <time.h> |
| 2a1135fa | 12 | #include <stdbool.h> |
| 03ab1b42 | 13 | #include <common/macros.h> |
| efef32e9 | 14 | #include <common/compat/time.h> |
| 2daf6502 | 15 | |
| 81684730 JR |
16 | #define MSEC_PER_SEC 1000ULL |
| 17 | #define NSEC_PER_SEC 1000000000ULL | |
| 18 | #define NSEC_PER_MSEC 1000000ULL | |
| 19 | #define NSEC_PER_USEC 1000ULL | |
| 20 | #define USEC_PER_SEC 1000000ULL | |
| 21 | #define USEC_PER_MSEC 1000ULL | |
| 22 | ||
| 23 | #define SEC_PER_MINUTE 60ULL | |
| 24 | #define MINUTE_PER_HOUR 60ULL | |
| 25 | ||
| 26 | #define USEC_PER_MINUTE (USEC_PER_SEC * SEC_PER_MINUTE) | |
| 27 | #define USEC_PER_HOURS (USEC_PER_MINUTE * MINUTE_PER_HOUR) | |
| 395d6b02 | 28 | |
| 274ca939 | 29 | #define ISO8601_STR_LEN sizeof("YYYYmmddTHHMMSS+HHMM") |
| a8b66566 | 30 | #define DATETIME_STR_LEN sizeof("YYYYmmdd-HHMMSS") |
| 274ca939 | 31 | |
| 03ab1b42 | 32 | LTTNG_HIDDEN |
| 2a1135fa JG |
33 | bool locale_supports_utf8(void); |
| 34 | ||
| 35 | #define NSEC_UNIT "ns" | |
| 36 | #define USEC_UNIT (locale_supports_utf8() ? "µs" : "us") | |
| 37 | #define MSEC_UNIT "ms" | |
| 38 | #define SEC_UNIT "s" | |
| 39 | #define MIN_UNIT "m" | |
| 40 | #define HR_UNIT "h" | |
| 41 | ||
| 2daf6502 MD |
42 | /* |
| 43 | * timespec_to_ms: Convert timespec to milliseconds. | |
| 44 | * | |
| 45 | * Returns 0 on success, else -1 on error. errno is set to EOVERFLOW if | |
| 46 | * input would overflow the output in milliseconds. | |
| 47 | */ | |
| 03ab1b42 | 48 | LTTNG_HIDDEN |
| 2daf6502 MD |
49 | int timespec_to_ms(struct timespec ts, unsigned long *ms); |
| 50 | ||
| 51 | /* | |
| 52 | * timespec_abs_diff: Absolute difference between timespec. | |
| 53 | */ | |
| 03ab1b42 | 54 | LTTNG_HIDDEN |
| 2daf6502 MD |
55 | struct timespec timespec_abs_diff(struct timespec ts_a, struct timespec ts_b); |
| 56 | ||
| 274ca939 JG |
57 | /* |
| 58 | * Format a Unix timestamp to an ISO 8601 compatible timestamp of | |
| 59 | * the form "YYYYmmddTHHMMSS+HHMM" in local time. `len` must >= to | |
| 60 | * ISO8601_STR_LEN. | |
| 61 | * | |
| 62 | * Returns 0 on success, else -1 on error. | |
| 63 | */ | |
| 64 | LTTNG_HIDDEN | |
| 65 | int time_to_iso8601_str(time_t time, char *str, size_t len); | |
| 66 | ||
| a8b66566 JR |
67 | LTTNG_HIDDEN |
| 68 | int time_to_datetime_str(time_t time, char *str, size_t len); | |
| 69 | ||
| 395d6b02 | 70 | #endif /* LTTNG_TIME_H */ |