source: mainline/uspace/lib/c/include/sys/time.h@ a53ed3a

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since a53ed3a was b7fd2a0, checked in by Jiří Zárevúcky <zarevucky.jiri@…>, 7 years ago

Use errno_t in all uspace and kernel code.

Change type of every variable, parameter and return value that holds an
<errno.h> constant to either errno_t (the usual case), or sys_errno_t
(some places in kernel). This is for the purpose of self-documentation,
as well as for type-checking with a bit of type definition hackery.

Although this is a massive commit, it is a simple text replacement, and thus
is very easy to verify. Simply do the following:

`
git checkout <this commit's hash>
git reset HEAD
git add .
tools/srepl '\berrno_t\b' int
git add .
tools/srepl '\bsys_errno_t\b' sysarg_t
git reset
git diff
`

While this doesn't ensure that the replacements are correct, it does ensure
that the commit doesn't do anything except those replacements. Since errno_t
is typedef'd to int in the usual case (and sys_errno_t to sysarg_t), even if
incorrect, this commit cannot change behavior.
  • Property mode set to 100644
File size: 3.5 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 <errno.h>
41#include <stddef.h>
42#include <stdint.h>
43
44#define DST_NONE 0
45#define ASCTIME_BUF_LEN 26
46
47typedef long time_t;
48typedef long suseconds_t;
49
50typedef uint32_t useconds_t;
51typedef uint32_t mseconds_t;
52
53struct tm {
54 int tm_usec; /* Microseconds [0,999999]. */
55 int tm_sec; /* Seconds [0,60]. */
56 int tm_min; /* Minutes [0,59]. */
57 int tm_hour; /* Hour [0,23]. */
58 int tm_mday; /* Day of month [1,31]. */
59 int tm_mon; /* Month of year [0,11]. */
60 int tm_year; /* Years since 1900. */
61 int tm_wday; /* Day of week [0,6] (Sunday = 0). */
62 int tm_yday; /* Day of year [0,365]. */
63 int tm_isdst; /* Daylight Savings flag. */
64};
65
66struct timeval {
67 time_t tv_sec; /* seconds */
68 suseconds_t tv_usec; /* microseconds */
69};
70
71struct timezone {
72 int tz_minuteswest; /* minutes W of Greenwich */
73 int tz_dsttime; /* type of dst correction */
74};
75
76extern void tv_add_diff(struct timeval *, suseconds_t);
77extern void tv_add(struct timeval *, struct timeval *);
78extern suseconds_t tv_sub_diff(struct timeval *, struct timeval *);
79extern void tv_sub(struct timeval *, struct timeval *);
80extern int tv_gt(struct timeval *, struct timeval *);
81extern int tv_gteq(struct timeval *, struct timeval *);
82extern void gettimeofday(struct timeval *, struct timezone *);
83extern void getuptime(struct timeval *);
84
85extern void udelay(useconds_t);
86extern errno_t usleep(useconds_t);
87
88extern time_t mktime(struct tm *);
89extern errno_t time_utc2tm(const time_t, struct tm *);
90extern errno_t time_utc2str(const time_t, char *);
91extern void time_tm2str(const struct tm *, char *);
92extern errno_t time_tv2tm(const struct timeval *, struct tm *);
93extern errno_t time_local2tm(const time_t, struct tm *);
94extern errno_t time_local2str(const time_t, char *);
95extern double difftime(time_t, time_t);
96extern size_t strftime(char *__restrict__, size_t, const char *__restrict__,
97 const struct tm *__restrict__);
98
99#endif
100
101/** @}
102 */
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