git.sur5r.net Git - cc65/blob - include/time.h

   1 /*****************************************************************************/
   2 /*                                                                           */
   3 /*                                  time.h                                   */
   4 /*                                                                           */
   5 /*                               Date and time                               */
   6 /*                                                                           */
   7 /*                                                                           */
   8 /*                                                                           */
   9 /* (C) 1998-2005 Ullrich von Bassewitz                                       */
  10 /*               Römerstrasse 52                                             */
  11 /*               D-70794 Filderstadt                                         */
  12 /* EMail:        uz@cc65.org                                                 */
  13 /*                                                                           */
  14 /*                                                                           */
  15 /* This software is provided 'as-is', without any expressed or implied       */
  16 /* warranty.  In no event will the authors be held liable for any damages    */
  17 /* arising from the use of this software.                                    */
  18 /*                                                                           */
  19 /* Permission is granted to anyone to use this software for any purpose,     */
  20 /* including commercial applications, and to alter it and redistribute it    */
  21 /* freely, subject to the following restrictions:                            */
  22 /*                                                                           */
  23 /* 1. The origin of this software must not be misrepresented; you must not   */
  24 /*    claim that you wrote the original software. If you use this software   */
  25 /*    in a product, an acknowledgment in the product documentation would be  */
  26 /*    appreciated but is not required.                                       */
  27 /* 2. Altered source versions must be plainly marked as such, and must not   */
  28 /*    be misrepresented as being the original software.                      */
  29 /* 3. This notice may not be removed or altered from any source              */
  30 /*    distribution.                                                          */
  31 /*                                                                           */
  32 /*****************************************************************************/
  33
  34
  35
  36 #ifndef _TIME_H
  37 #define _TIME_H
  38
  39
  40
  41 /* NULL pointer */
  42 #ifndef _HAVE_NULL
  43 #define NULL    0
  44 #define _HAVE_NULL
  45 #endif
  46
  47 /* size_t is needed */
  48 #ifndef _HAVE_size_t
  49 #define _HAVE_size_t
  50 typedef unsigned size_t;
  51 #endif
  52
  53 typedef unsigned long time_t;
  54 typedef unsigned long clock_t;
  55
  56 /* Structure for broken down time */
  57 struct tm {
  58     int     tm_sec;
  59     int     tm_min;
  60     int     tm_hour;
  61     int     tm_mday;
  62     int     tm_mon;
  63     int     tm_year;
  64     int     tm_wday;
  65     int     tm_yday;
  66     int     tm_isdst;
  67 };
  68
  69 /* Timezone representation, default is UTC */
  70 extern struct _timezone {
  71     char    daylight;   /* True if daylight savings time active */
  72     long    timezone;   /* Number of seconds behind UTC */
  73     char    tzname[5];  /* Name of timezone, e.g. CET */
  74     char    dstname[5]; /* Name when daylight true, e.g. CEST */
  75 } _tz;
  76
  77
  78
  79 #if defined(__ATARI__)
  80 /* The clock depends on the video standard, so read it at runtime */
  81 unsigned _clocks_per_sec (void);
  82 #  define CLK_TCK               _clocks_per_sec()
  83 #  define CLOCKS_PER_SEC        _clocks_per_sec()
  84 #elif defined(__ATMOS__)
  85 #  define CLK_TCK               100     /* POSIX */
  86 #  define CLOCKS_PER_SEC        100     /* ANSI */
  87 #elif defined(__CBM__)
  88 #  if defined(__CBM510__) || defined(__CBM610__)
  89 /* The 510/610 gets its clock from the AC current */
  90 #    define CLK_TCK             50      /* POSIX */
  91 #    define CLOCKS_PER_SEC      50      /* ANSI */
  92 #  else
  93 #    define CLK_TCK             60      /* POSIX */
  94 #    define CLOCKS_PER_SEC      60      /* ANSI */
  95 #  endif
  96 #elif defined(__NES__)
  97 #  define CLK_TCK               50      /* POSIX */
  98 #  define CLOCKS_PER_SEC        50      /* ANSI */
  99 #elif  defined(__GEOS__)
 100 #  define CLK_TCK               1       /* POSIX */
 101 #  define CLOCKS_PER_SEC        1       /* ANSI */
 102 #endif
 103
 104
 105
 106 time_t _systime (void);
 107 /* Similar to time(), but:
 108  *   - Is not ISO C
 109  *   - Does not take the additional pointer
 110  *   - Does not set errno when returning -1
 111  */
 112
 113 /* ISO C function prototypes */
 114 char* __fastcall__ asctime (const struct tm* timep);
 115 clock_t clock (void);
 116 char* __fastcall__ ctime (const time_t* timep);
 117 struct tm* __fastcall__ gmtime (const time_t* timep);
 118 struct tm* __fastcall__ localtime (const time_t* timep);
 119 time_t __fastcall__ mktime (struct tm* timep);
 120 size_t __fastcall__ strftime (char* buf, size_t bufsize, const char* format, const struct tm* tm);
 121 time_t __fastcall__ time (time_t* t);
 122
 123
 124
 125 /* End of time.h */
 126
 127 #endif
 128
 129
 130