source: mainline/uspace/lib/c/include/sys/time.h@ b272c67a

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since b272c67a was 7f9d97f3, checked in by Jakub Jermar <jakub@…>, 10 years ago

Make gettimeofday() return the actual microseconds.

Enhance struct tm to also have a field to hold microseconds and make
sure that this information propagates from the RTC driver.

  • Property mode set to 100644
File size: 3.4 KB
Line 
1/*
2 * Copyright (c) 2006 Ondrej Palkovsky
3 * Copyright (c) 2011 Petr Koupy
4 * Copyright (c) 2011 Jiri Zarevucky
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 *
11 * - Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * - Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * - The name of the author may not be used to endorse or promote products
17 * derived from this software without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
20 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
21 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
22 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
24 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
28 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31/** @addtogroup libc
32 * @{
33 */
34/** @file
35 */
36
37#ifndef LIBC_SYS_TIME_H_
38#define LIBC_SYS_TIME_H_
39
40#include <sys/types.h>
41
42#define DST_NONE 0
43#define ASCTIME_BUF_LEN 26
44
45typedef long time_t;
46typedef long suseconds_t;
47
48typedef uint32_t useconds_t;
49typedef uint32_t mseconds_t;
50
51struct tm {
52 int tm_usec; /* Microseconds [0,999999]. */
53 int tm_sec; /* Seconds [0,60]. */
54 int tm_min; /* Minutes [0,59]. */
55 int tm_hour; /* Hour [0,23]. */
56 int tm_mday; /* Day of month [1,31]. */
57 int tm_mon; /* Month of year [0,11]. */
58 int tm_year; /* Years since 1900. */
59 int tm_wday; /* Day of week [0,6] (Sunday = 0). */
60 int tm_yday; /* Day of year [0,365]. */
61 int tm_isdst; /* Daylight Savings flag. */
62};
63
64struct timeval {
65 time_t tv_sec; /* seconds */
66 suseconds_t tv_usec; /* microseconds */
67};
68
69struct timezone {
70 int tz_minuteswest; /* minutes W of Greenwich */
71 int tz_dsttime; /* type of dst correction */
72};
73
74extern void tv_add_diff(struct timeval *, suseconds_t);
75extern void tv_add(struct timeval *, struct timeval *);
76extern suseconds_t tv_sub_diff(struct timeval *, struct timeval *);
77extern void tv_sub(struct timeval *, struct timeval *);
78extern int tv_gt(struct timeval *, struct timeval *);
79extern int tv_gteq(struct timeval *, struct timeval *);
80extern void gettimeofday(struct timeval *, struct timezone *);
81extern void getuptime(struct timeval *);
82
83extern void udelay(useconds_t);
84extern int usleep(useconds_t);
85
86extern time_t mktime(struct tm *);
87extern int time_utc2tm(const time_t, struct tm *);
88extern int time_utc2str(const time_t, char *);
89extern void time_tm2str(const struct tm *, char *);
90extern int time_tv2tm(const struct timeval *, struct tm *);
91extern int time_local2tm(const time_t, struct tm *);
92extern int time_local2str(const time_t, char *);
93extern double difftime(time_t, time_t);
94extern size_t strftime(char *restrict, size_t, const char *restrict,
95 const struct tm *restrict);
96
97#endif
98
99/** @}
100 */
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