reactos/include/msvcrt/time.h

   1 /*
   2  * time.h
   3  *
   4  * Date and time functions and types.
   5  *
   6  * This file is part of the Mingw32 package.
   7  *
   8  * Contributors:
   9  *  Created by Colin Peters <colin@bird.fu.is.saga-u.ac.jp>
  10  *
  11  *  THIS SOFTWARE IS NOT COPYRIGHTED
  12  *
  13  *  This source code is offered for use in the public domain. You may
  14  *  use, modify or distribute it freely.
  15  *
  16  *  This code is distributed in the hope that it will be useful but
  17  *  WITHOUT ANY WARRANTY. ALL WARRANTIES, EXPRESS OR IMPLIED ARE HEREBY
  18  *  DISCLAMED. This includes but is not limited to warranties of
  19  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  20  *
  21  * $Revision: 1.3 $
  22  * $Author: ekohl $
  23  * $Date: 2001/07/06 21:16:28 $
  24  *
  25  */
  26 /* Appropriated for Reactos Crtdll by Ariadne */
  27 #ifndef _TIME_H_
  28 #define _TIME_H_
  29
  30 #define __need_wchar_t
  31 #define __need_size_t
  32 #include <msvcrt/stddef.h>
  33
  34 #ifdef  __cplusplus
  35 extern "C" {
  36 #endif
  37
  38 /*
  39  * Number of clock ticks per second. A clock tick is the unit by which
  40  * processor time is measured and is returned by 'clock'.
  41  */
  42 #define CLOCKS_PER_SEC  1000.0
  43 #define CLK_TICK        CLOCKS_PER_SEC
  44
  45 /*
  46  * A type for measuring processor time (in clock ticks).
  47  */
  48 #ifndef _CLOCK_T_
  49 #define _CLOCK_T_
  50 typedef long    clock_t;
  51 #endif
  52
  53 /*
  54  * Need a definition of time_t.
  55  */
  56 #include <msvcrt/sys/types.h>
  57
  58 /*
  59  * A type for storing the current time and date. This is the number of
  60  * seconds since midnight Jan 1, 1970.
  61  * NOTE: Normally this is defined by the above include of sys/types.h
  62  */
  63 #ifndef _TIME_T_
  64 #define _TIME_T_
  65 typedef long    time_t;
  66 #endif
  67
  68 /*
  69  * A structure for storing all kinds of useful information about the
  70  * current (or another) time.
  71  */
  72 struct tm {
  73   int tm_sec;
  74   int tm_min;
  75   int tm_hour;
  76   int tm_mday;
  77   int tm_mon;
  78   int tm_year;
  79   int tm_wday;
  80   int tm_yday;
  81   int tm_isdst;
  82   char *tm_zone;
  83   int tm_gmtoff;
  84 };
  85
  86
  87
  88 clock_t clock (void);
  89 time_t  time (time_t* tp);
  90 double  difftime (time_t t2, time_t t1);
  91 time_t  mktime (struct tm* tmsp);
  92
  93 /*
  94  * These functions write to and return pointers to static buffers that may
  95  * be overwritten by other function calls. Yikes!
  96  *
  97  * NOTE: localtime, and perhaps the others of the four functions grouped
  98  * below may return NULL if their argument is not 'acceptable'. Also note
  99  * that calling asctime with a NULL pointer will produce an Invalid Page
 100  * Fault and crap out your program. Guess how I know. Hint: stat called on
 101  * a directory gives 'invalid' times in st_atime etc...
 102  */
 103 char*           asctime (const struct tm* tmsp);
 104 wchar_t*        _wasctime(const struct tm *timeptr);
 105 char*           ctime (const time_t* tp);
 106 wchar_t*        _wctime(const time_t * const timep);
 107 struct tm*      gmtime (const time_t* tm);
 108 struct tm*      localtime (const time_t* tm);
 109
 110 char*           _strdate(const char *datestr);
 111 wchar_t*        _wstrdate(const wchar_t *datestr);
 112
 113 size_t  strftime (char* caBuffer, size_t sizeMax, const char* szFormat,
 114                   const struct tm* tpPrint);
 115
 116 size_t  wcsftime (wchar_t* wcaBuffer, size_t sizeMax,
 117                   const wchar_t* wsFormat, const struct tm* tpPrint);
 118
 119 char*           _strtime(char* buf);
 120 wchar_t*        _wstrtime(wchar_t* buf);
 121
 122 #ifdef  __cplusplus
 123 }
 124 #endif
 125
 126 #endif