127 lines
4.1 KiB
C
127 lines
4.1 KiB
C
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/************************************************************
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* time.h
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*
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* Copyright (C) 2007 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name Gregory Nutt nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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************************************************************/
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#ifndef _TIME_H_
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#define _TIME_H_
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/************************************************************
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* Included Files
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************************************************************/
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#undef EXTERN
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#if defined(__cplusplus)
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#define EXTERN extern "C"
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extern "C" {
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#else
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#define EXTERN extern
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#endif
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/************************************************************
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* Compilations Switches
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************************************************************/
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/************************************************************
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* Definitions
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************************************************************/
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/* This must be set to the last known date */
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#define CURRENT_YEAR 2000
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#define CURRENT_MONTH 5
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#define CURRENT_DAY 22
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/* This is the only clock_id supported by the "Clock and Timer
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* Functions."
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*/
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#define CLOCK_REALTIME 0
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/************************************************************
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* Global Type Declarations
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************************************************************/
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typedef long time_t;
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typedef long clockid_t;
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struct timespec
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{
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time_t tv_sec; /* Seconds */
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long tv_nsec; /* Nanoseconds */
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};
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struct timeval
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{
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time_t tv_sec; /* Seconds */
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long tv_usec; /* Microseconds */
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};
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struct tm
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{
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int tm_sec; /* second (0-61, allows for leap seconds) */
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int tm_min; /* minute (0-59) */
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int tm_hour; /* hour (0-23) */
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int tm_mday; /* day of the month (1-31) */
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int tm_mon; /* month (0-11) */
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int tm_year; /* years since 1900 */
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#if 0 /* not supported */
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int tm_wday; /* day of the week (0-6) */
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int tm_yday; /* day of the year (0-365) */
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int tm_isdst; /* non-0 if daylight savings time is in effect */
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#endif
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};
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/************************************************************
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* Global Variables
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************************************************************/
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/************************************************************
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* Global Function Prototypes
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************************************************************/
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EXTERN int clock_settime(clockid_t clock_id, const struct timespec *tp);
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EXTERN int clock_gettime(clockid_t clock_id, struct timespec *tp);
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EXTERN int clock_getres(clockid_t clock_id, struct timespec *res);
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EXTERN time_t mktime(struct tm *tp);
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EXTERN struct tm *gmtime_r(const time_t *clock, struct tm *result);
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#define localtime_r(c,r) gmtime_r(c,r)
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#undef EXTERN
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#if defined(__cplusplus)
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}
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#endif
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#endif /* _TIME_H_ */
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