include/time.h

   1 /*
   2  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
   7  *
   8  * This file contains Original Code and/or Modifications of Original Code
   9  * as defined in and that are subject to the Apple Public Source License
  10  * Version 2.0 (the 'License'). You may not use this file except in
  11  * compliance with the License. Please obtain a copy of the License at
  12  * http://www.opensource.apple.com/apsl/ and read it before using this
  13  * file.
  14  *
  15  * The Original Code and all software distributed under the License are
  16  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  17  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  18  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  20  * Please see the License for the specific language governing rights and
  21  * limitations under the License.
  22  *
  23  * @APPLE_LICENSE_HEADER_END@
  24  */
  25 /*
  26  * Copyright (c) 1989, 1993
  27  *      The Regents of the University of California.  All rights reserved.
  28  * (c) UNIX System Laboratories, Inc.
  29  * All or some portions of this file are derived from material licensed
  30  * to the University of California by American Telephone and Telegraph
  31  * Co. or Unix System Laboratories, Inc. and are reproduced herein with
  32  * the permission of UNIX System Laboratories, Inc.
  33  *
  34  * Redistribution and use in source and binary forms, with or without
  35  * modification, are permitted provided that the following conditions
  36  * are met:
  37  * 1. Redistributions of source code must retain the above copyright
  38  *    notice, this list of conditions and the following disclaimer.
  39  * 2. Redistributions in binary form must reproduce the above copyright
  40  *    notice, this list of conditions and the following disclaimer in the
  41  *    documentation and/or other materials provided with the distribution.
  42  * 3. All advertising materials mentioning features or use of this software
  43  *    must display the following acknowledgement:
  44  *      This product includes software developed by the University of
  45  *      California, Berkeley and its contributors.
  46  * 4. Neither the name of the University nor the names of its contributors
  47  *    may be used to endorse or promote products derived from this software
  48  *    without specific prior written permission.
  49  *
  50  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  51  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  52  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  53  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  54  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  55  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  56  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  57  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  58  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  59  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  60  * SUCH DAMAGE.
  61  *
  62  *      @(#)time.h      8.3 (Berkeley) 1/21/94
  63  */
  64
  65 #ifndef _TIME_H_
  66 #define _TIME_H_
  67
  68 #include <machine/ansi.h>
  69
  70 #ifndef NULL
  71 #ifdef __GNUG__
  72 #define NULL __null
  73 #else /* ! __GNUG__ */
  74 #ifndef __cplusplus
  75 #define NULL ((void *)0)
  76 #else /* __cplusplus */
  77 #define NULL 0
  78 #endif /* ! __cplusplus */
  79 #endif /* __GNUG__ */
  80 #endif /* ! NULL */
  81
  82 #ifndef _BSD_CLOCK_T_DEFINED_
  83 #define _BSD_CLOCK_T_DEFINED_
  84 typedef _BSD_CLOCK_T_   clock_t;
  85 #endif
  86
  87 #ifndef _BSD_TIME_T_DEFINED_
  88 #define _BSD_TIME_T_DEFINED_
  89 typedef _BSD_TIME_T_    time_t;
  90 #endif
  91
  92 #ifndef _BSD_SIZE_T_DEFINED_
  93 #define _BSD_SIZE_T_DEFINED_
  94 typedef _BSD_SIZE_T_    size_t;
  95 #endif
  96
  97 #ifndef _TIMESPEC_DECLARED
  98 #define _TIMESPEC_DECLARED
  99 struct timespec {
 100         time_t  tv_sec;         /* seconds */
 101         long    tv_nsec;        /* and nanoseconds */
 102 };
 103 #endif
 104
 105 struct tm {
 106         int     tm_sec;         /* seconds after the minute [0-60] */
 107         int     tm_min;         /* minutes after the hour [0-59] */
 108         int     tm_hour;        /* hours since midnight [0-23] */
 109         int     tm_mday;        /* day of the month [1-31] */
 110         int     tm_mon;         /* months since January [0-11] */
 111         int     tm_year;        /* years since 1900 */
 112         int     tm_wday;        /* days since Sunday [0-6] */
 113         int     tm_yday;        /* days since January 1 [0-365] */
 114         int     tm_isdst;       /* Daylight Savings Time flag */
 115         long    tm_gmtoff;      /* offset from CUT in seconds */
 116         char    *tm_zone;       /* timezone abbreviation */
 117 };
 118
 119 #include <machine/limits.h>     /* Include file containing CLK_TCK. */
 120
 121 #define CLOCKS_PER_SEC  (CLK_TCK)
 122
 123 #include <sys/cdefs.h>
 124
 125 #ifndef _ANSI_SOURCE
 126 extern char *tzname[];
 127 #endif
 128
 129 __BEGIN_DECLS
 130 char *asctime(const struct tm *);
 131 clock_t clock(void);
 132 char *ctime(const time_t *);
 133 double difftime(time_t, time_t);
 134 struct tm *gmtime(const time_t *);
 135 struct tm *localtime(const time_t *);
 136 time_t mktime(struct tm *);
 137 size_t strftime(char *, size_t, const char *, const struct tm *);
 138 time_t time(time_t *);
 139
 140 #ifndef _ANSI_SOURCE
 141 void tzset(void);
 142 #endif /* not ANSI */
 143
 144 #if !defined(_ANSI_SOURCE) && !defined(_POSIX_SOURCE)
 145 char *asctime_r(const struct tm *, char *);
 146 char *ctime_r(const time_t *, char *);
 147 struct tm *gmtime_r(const time_t *, struct tm *);
 148 struct tm *localtime_r(const time_t *, struct tm *);
 149 time_t posix2time(time_t);
 150 char *strptime(const char *, const char *, struct tm *);
 151 char *timezone(int, int);
 152 void tzsetwall(void);
 153 time_t time2posix(time_t);
 154 time_t timelocal(struct tm * const);
 155 time_t timegm(struct tm * const);
 156 #endif /* neither ANSI nor POSIX */
 157
 158 #if !defined(_ANSI_SOURCE)
 159 int nanosleep(const struct timespec *, struct timespec *);
 160 #endif
 161 __END_DECLS
 162
 163 #endif /* !_TIME_H_ */