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bigbiff7b4c7a62015-01-01 19:44:14 -05001/***
2 First set of functions in this file are part of systemd, and were
3 copied to util-linux at August 2013.
4
5 Copyright 2010 Lennart Poettering
6 Copyright (C) 2014 Karel Zak <kzak@redhat.com>
7
8 systemd is free software; you can redistribute it and/or modify it
9 under the terms of the GNU Lesser General Public License as published by
10 the Free Software Foundation; either version 2.1 of the License, or
11 (at your option) any later version.
12
13 systemd is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 Lesser General Public License for more details.
17
18 You should have received a copy of the GNU Lesser General Public License
19 along with systemd; If not, see <http://www.gnu.org/licenses/>.
20***/
21#ifndef UTIL_LINUX_TIME_UTIL_H
22#define UTIL_LINUX_TIME_UTIL_H
23
24#include <stdio.h>
25#include <inttypes.h>
26
27typedef uint64_t usec_t;
28typedef uint64_t nsec_t;
29
30#define MSEC_PER_SEC 1000ULL
31#define USEC_PER_SEC 1000000ULL
32#define USEC_PER_MSEC 1000ULL
33#define NSEC_PER_SEC 1000000000ULL
34#define NSEC_PER_MSEC 1000000ULL
35#define NSEC_PER_USEC 1000ULL
36
37#define USEC_PER_MINUTE (60ULL*USEC_PER_SEC)
38#define NSEC_PER_MINUTE (60ULL*NSEC_PER_SEC)
39#define USEC_PER_HOUR (60ULL*USEC_PER_MINUTE)
40#define NSEC_PER_HOUR (60ULL*NSEC_PER_MINUTE)
41#define USEC_PER_DAY (24ULL*USEC_PER_HOUR)
42#define NSEC_PER_DAY (24ULL*NSEC_PER_HOUR)
43#define USEC_PER_WEEK (7ULL*USEC_PER_DAY)
44#define NSEC_PER_WEEK (7ULL*NSEC_PER_DAY)
45#define USEC_PER_MONTH (2629800ULL*USEC_PER_SEC)
46#define NSEC_PER_MONTH (2629800ULL*NSEC_PER_SEC)
47#define USEC_PER_YEAR (31557600ULL*USEC_PER_SEC)
48#define NSEC_PER_YEAR (31557600ULL*NSEC_PER_SEC)
49
50#define FORMAT_TIMESTAMP_MAX ((4*4+1)+11+9+4+1) /* weekdays can be unicode */
51#define FORMAT_TIMESTAMP_RELATIVE_MAX 256
52#define FORMAT_TIMESPAN_MAX 64
53
54int parse_timestamp(const char *t, usec_t *usec);
55
56#endif /* UTIL_LINUX_TIME_UTIL_H */