win32/time.c

   1 /*
   2  * Win32 kernel functions
   3  *
   4  * Copyright 1995 Martin von Loewis and Cameron Heide
   5  */
   6
   7 #include <string.h>
   8 #include <time.h>
   9 #include <sys/time.h>
  10 #include <unistd.h>
  11 #include "file.h"
  12 #include "winerror.h"
  13 #include "debug.h"
  14
  15 /***********************************************************************
  16  *              GetLocalTime            (KERNEL32.228)
  17  */
  18 VOID WINAPI GetLocalTime(LPSYSTEMTIME systime)
  19 {
  20     time_t local_time;
  21     struct tm *local_tm;
  22     struct timeval tv;
  23
  24     gettimeofday(&tv, NULL);
  25     local_time = tv.tv_sec;
  26     local_tm = localtime(&local_time);
  27
  28     systime->wYear = local_tm->tm_year + 1900;
  29     systime->wMonth = local_tm->tm_mon + 1;
  30     systime->wDayOfWeek = local_tm->tm_wday;
  31     systime->wDay = local_tm->tm_mday;
  32     systime->wHour = local_tm->tm_hour;
  33     systime->wMinute = local_tm->tm_min;
  34     systime->wSecond = local_tm->tm_sec;
  35     systime->wMilliseconds = (tv.tv_usec / 1000) % 1000;
  36 }
  37
  38 /***********************************************************************
  39  *              GetSystemTime            (KERNEL32.285)
  40  */
  41 VOID WINAPI GetSystemTime(LPSYSTEMTIME systime)
  42 {
  43     time_t local_time;
  44     struct tm *local_tm;
  45     struct timeval tv;
  46
  47     gettimeofday(&tv, NULL);
  48     local_time = tv.tv_sec;
  49     local_tm = gmtime(&local_time);
  50
  51     systime->wYear = local_tm->tm_year + 1900;
  52     systime->wMonth = local_tm->tm_mon + 1;
  53     systime->wDayOfWeek = local_tm->tm_wday;
  54     systime->wDay = local_tm->tm_mday;
  55     systime->wHour = local_tm->tm_hour;
  56     systime->wMinute = local_tm->tm_min;
  57     systime->wSecond = local_tm->tm_sec;
  58     systime->wMilliseconds = (tv.tv_usec / 1000) % 1000;
  59 }
  60
  61
  62 /***********************************************************************
  63  *              SetSystemTime            (KERNEL32.507)
  64  */
  65 BOOL WINAPI SetSystemTime(const SYSTEMTIME *systime)
  66 {
  67     struct timeval tv;
  68     struct timezone tz;
  69     struct tm t;
  70     time_t sec;
  71
  72     /* call gettimeofday to get the current timezone */
  73     gettimeofday(&tv, &tz);
  74
  75     /* get the number of seconds */
  76     t.tm_sec = systime->wSecond;
  77     t.tm_min = systime->wMinute;
  78     t.tm_hour = systime->wHour;
  79     t.tm_mday = systime->wDay;
  80     t.tm_mon = systime->wMonth;
  81     t.tm_year = systime->wYear;
  82     sec = mktime (&t);
  83
  84     /* set the new time */
  85     tv.tv_sec = sec;
  86     tv.tv_usec = systime->wMilliseconds * 1000;
  87     if (settimeofday(&tv, &tz))
  88     {
  89         return FALSE;
  90     }
  91     else
  92     {
  93         return TRUE;
  94     }
  95 }
  96
  97
  98 /***********************************************************************
  99  *              GetTimeZoneInformation  (KERNEL32.302)
 100  */
 101 DWORD WINAPI GetTimeZoneInformation(LPTIME_ZONE_INFORMATION tzinfo)
 102 {
 103     time_t gmt, lt;
 104
 105     memset(tzinfo, 0, sizeof(TIME_ZONE_INFORMATION));
 106
 107     gmt = time(NULL);
 108     lt = mktime(gmtime(&gmt));
 109     tzinfo->Bias = (lt - gmt) / 60;
 110     tzinfo->StandardBias = 0;
 111     tzinfo->DaylightBias = -60;
 112
 113     return TIME_ZONE_ID_UNKNOWN;
 114 }
 115
 116
 117 /***********************************************************************
 118  *              SetTimeZoneInformation  (KERNEL32.515)
 119  */
 120 BOOL WINAPI SetTimeZoneInformation(const LPTIME_ZONE_INFORMATION tzinfo)
 121 {
 122     struct timezone tz;
 123
 124     tz.tz_minuteswest = tzinfo->Bias;
 125 #ifdef DST_NONE
 126     tz.tz_dsttime = DST_NONE;
 127 #else
 128     tz.tz_dsttime = 0;
 129 #endif
 130     return !settimeofday(NULL, &tz);
 131 }
 132
 133
 134 /***********************************************************************
 135  *              GetSystemTimeAsFileTime  (KERNEL32)
 136  */
 137 VOID WINAPI GetSystemTimeAsFileTime(LPFILETIME systemtimeAsfiletime) {
 138         DOSFS_UnixTimeToFileTime(time(NULL),systemtimeAsfiletime,0);
 139 }
 140
 141 /***********************************************************************
 142  *              SystemTimeToTzSpecificLocalTime32  (KERNEL32.683)
 143  */
 144 BOOL WINAPI SystemTimeToTzSpecificLocalTime(
 145   LPTIME_ZONE_INFORMATION lpTimeZoneInformation,
 146   LPSYSTEMTIME lpUniversalTime,
 147   LPSYSTEMTIME lpLocalTime) {
 148
 149   FIXME(win32, ":stub\n");
 150   SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
 151        return FALSE;
 152 }