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120 lines
2.8 KiB
C
120 lines
2.8 KiB
C
/*
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* time.h
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*
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* Date and time functions and types.
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*
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* This file is part of the Mingw32 package.
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*
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* Contributors:
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* Created by Colin Peters <colin@bird.fu.is.saga-u.ac.jp>
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*
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* THIS SOFTWARE IS NOT COPYRIGHTED
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*
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* This source code is offered for use in the public domain. You may
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* use, modify or distribute it freely.
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*
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* This code is distributed in the hope that it will be useful but
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* WITHOUT ANY WARRANTY. ALL WARRANTIES, EXPRESS OR IMPLIED ARE HEREBY
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* DISCLAMED. This includes but is not limited to warranties of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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*
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* $Revision: 1.3 $
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* $Author: ariadne $
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* $Date: 1999/04/02 21:42:06 $
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*
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*/
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/* Appropriated for Reactos Crtdll by Ariadne */
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#ifndef _TIME_H_
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#define _TIME_H_
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#define __need_wchar_t
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#define __need_size_t
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#include <crtdll/stddef.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*
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* Number of clock ticks per second. A clock tick is the unit by which
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* processor time is measured and is returned by 'clock'.
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*/
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#define CLOCKS_PER_SEC 1000.0
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#define CLK_TICK CLOCKS_PER_SEC
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/*
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* A type for measuring processor time (in clock ticks).
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*/
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#ifndef _CLOCK_T_
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#define _CLOCK_T_
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typedef long clock_t;
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#endif
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/*
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* Need a definition of time_t.
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*/
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#include <crtdll/sys/types.h>
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/*
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* A type for storing the current time and date. This is the number of
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* seconds since midnight Jan 1, 1970.
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* NOTE: Normally this is defined by the above include of sys/types.h
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*/
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#ifndef _TIME_T_
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#define _TIME_T_
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typedef long time_t;
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#endif
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/*
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* A structure for storing all kinds of useful information about the
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* current (or another) time.
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*/
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struct tm {
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int tm_sec;
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int tm_min;
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int tm_hour;
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int tm_mday;
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int tm_mon;
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int tm_year;
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int tm_wday;
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int tm_yday;
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int tm_isdst;
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char *tm_zone;
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int tm_gmtoff;
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};
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clock_t clock (void);
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time_t time (time_t* tp);
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double difftime (time_t t2, time_t t1);
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time_t mktime (struct tm* tmsp);
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/*
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* These functions write to and return pointers to static buffers that may
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* be overwritten by other function calls. Yikes!
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*
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* NOTE: localtime, and perhaps the others of the four functions grouped
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* below may return NULL if their argument is not 'acceptable'. Also note
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* that calling asctime with a NULL pointer will produce an Invalid Page
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* Fault and crap out your program. Guess how I know. Hint: stat called on
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* a directory gives 'invalid' times in st_atime etc...
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*/
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char* asctime (const struct tm* tmsp);
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char* ctime (const time_t* tp);
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struct tm* gmtime (const time_t* tm);
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struct tm* localtime (const time_t* tm);
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size_t strftime (char* caBuffer, size_t sizeMax, const char* szFormat,
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const struct tm* tpPrint);
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size_t wcsftime (wchar_t* wcaBuffer, size_t sizeMax,
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const wchar_t* wsFormat, const struct tm* tpPrint);
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#ifdef __cplusplus
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}
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#endif
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#endif
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