dlls/msvcrt/time.c

   1 /*
   2  * msvcrt.dll date/time functions
   3  *
   4  * Copyright 1996,1998 Marcus Meissner
   5  * Copyright 1996 Jukka Iivonen
   6  * Copyright 1997,2000 Uwe Bonnes
   7  * Copyright 2000 Jon Griffiths
   8  */
   9 #include <time.h>
  10 #include <sys/times.h>
  11 #include "msvcrt.h"
  12
  13 #include "msvcrt/stdlib.h"
  14 #include "msvcrt/sys/timeb.h"
  15 #include "msvcrt/time.h"
  16
  17
  18 DEFAULT_DEBUG_CHANNEL(msvcrt);
  19
  20
  21 /* INTERNAL: Return formatted current time/date */
  22 char* msvcrt_get_current_time(char* out, const char* format)
  23 {
  24   static const MSVCRT_time_t bad_time = (MSVCRT_time_t)-1;
  25   time_t t;
  26   struct tm *_tm = NULL;
  27   char *retval = NULL;
  28
  29   if (time(&t) != bad_time && (_tm = localtime(&t)) &&
  30       strftime(out,9,format,_tm) == 8)
  31     retval = out;
  32   if (_tm)
  33     MSVCRT_free(_tm);
  34   return retval;
  35 }
  36
  37 /**********************************************************************
  38  *              _strdate (MSVCRT.@)
  39  */
  40 char* _strdate(char* date)
  41 {
  42   return msvcrt_get_current_time(date,"%m/%d/%y");
  43 }
  44
  45 /*********************************************************************
  46  *              _strtime (MSVCRT.@)
  47  */
  48 char* _strtime(char* date)
  49 {
  50   return msvcrt_get_current_time(date,"%H:%M:%S");
  51 }
  52
  53 /*********************************************************************
  54  *              clock (MSVCRT.@)
  55  */
  56 MSVCRT_clock_t MSVCRT_clock(void)
  57 {
  58   struct tms alltimes;
  59   clock_t res;
  60
  61   times(&alltimes);
  62   res = alltimes.tms_utime + alltimes.tms_stime +
  63         alltimes.tms_cutime + alltimes.tms_cstime;
  64   /* FIXME: We need some symbolic representation for CLOCKS_PER_SEC,
  65    *  10 holds only for Windows/Linux_i86)
  66    */
  67   return 10*res;
  68 }
  69
  70 /*********************************************************************
  71  *              difftime (MSVCRT.@)
  72  */
  73 double MSVCRT_difftime(MSVCRT_time_t time1, MSVCRT_time_t time2)
  74 {
  75     return (double)(time1 - time2);
  76 }
  77
  78 /*********************************************************************
  79  *              time (MSVCRT.@)
  80  */
  81 MSVCRT_time_t MSVCRT_time(MSVCRT_time_t* buf)
  82 {
  83   MSVCRT_time_t curtime = time(NULL);
  84   return buf ? *buf = curtime : curtime;
  85 }
  86
  87 /*********************************************************************
  88  *              _ftime (MSVCRT.@)
  89  */
  90 void _ftime(struct _timeb *buf)
  91 {
  92   buf->time = MSVCRT_time(NULL);
  93   buf->millitm = 0; /* FIXME */
  94   buf->timezone = 0;
  95   buf->dstflag = 0;
  96 }