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 "debugtools.h"
  14
  15 DEFAULT_DEBUG_CHANNEL(win32)
  16
  17 /***********************************************************************
  18  *              GetLocalTime            (KERNEL32.228)
  19  */
  20 VOID WINAPI GetLocalTime(LPSYSTEMTIME systime)
  21 {
  22     time_t local_time;
  23     struct tm *local_tm;
  24     struct timeval tv;
  25
  26     gettimeofday(&tv, NULL);
  27     local_time = tv.tv_sec;
  28     local_tm = localtime(&local_time);
  29
  30     systime->wYear = local_tm->tm_year + 1900;
  31     systime->wMonth = local_tm->tm_mon + 1;
  32     systime->wDayOfWeek = local_tm->tm_wday;
  33     systime->wDay = local_tm->tm_mday;
  34     systime->wHour = local_tm->tm_hour;
  35     systime->wMinute = local_tm->tm_min;
  36     systime->wSecond = local_tm->tm_sec;
  37     systime->wMilliseconds = (tv.tv_usec / 1000) % 1000;
  38 }
  39
  40
  41 /***********************************************************************
  42  *              SetLocalTime            (KERNEL32.655)
  43  *
  44  * FIXME: correct ? Is the timezone param of settimeofday() needed ?
  45  * I don't have any docu about SetLocal/SystemTime(), argl...
  46  */
  47 BOOL WINAPI SetLocalTime(const SYSTEMTIME *systime)
  48 {
  49     struct timeval tv;
  50     struct tm t;
  51     time_t sec;
  52
  53     /* get the number of seconds */
  54     t.tm_sec = systime->wSecond;
  55     t.tm_min = systime->wMinute;
  56     t.tm_hour = systime->wHour;
  57     t.tm_mday = systime->wDay;
  58     t.tm_mon = systime->wMonth;
  59     t.tm_year = systime->wYear;
  60     sec = mktime (&t);
  61
  62     /* set the new time */
  63     tv.tv_sec = sec;
  64     tv.tv_usec = systime->wMilliseconds * 1000;
  65     return !settimeofday(&tv, NULL);
  66 }
  67
  68
  69 /***********************************************************************
  70  *              GetSystemTime            (KERNEL32.285)
  71  */
  72 VOID WINAPI GetSystemTime(LPSYSTEMTIME systime)
  73 {
  74     time_t local_time;
  75     struct tm *local_tm;
  76     struct timeval tv;
  77
  78     gettimeofday(&tv, NULL);
  79     local_time = tv.tv_sec;
  80     local_tm = gmtime(&local_time);
  81
  82     systime->wYear = local_tm->tm_year + 1900;
  83     systime->wMonth = local_tm->tm_mon + 1;
  84     systime->wDayOfWeek = local_tm->tm_wday;
  85     systime->wDay = local_tm->tm_mday;
  86     systime->wHour = local_tm->tm_hour;
  87     systime->wMinute = local_tm->tm_min;
  88     systime->wSecond = local_tm->tm_sec;
  89     systime->wMilliseconds = (tv.tv_usec / 1000) % 1000;
  90 }
  91
  92
  93 /***********************************************************************
  94  *              SetSystemTime            (KERNEL32.507)
  95  */
  96 BOOL WINAPI SetSystemTime(const SYSTEMTIME *systime)
  97 {
  98     struct timeval tv;
  99     struct timezone tz;
 100     struct tm t;
 101     time_t sec;
 102
 103     /* call gettimeofday to get the current timezone */
 104     gettimeofday(&tv, &tz);
 105
 106     /* get the number of seconds */
 107     t.tm_sec = systime->wSecond;
 108     t.tm_min = systime->wMinute;
 109     t.tm_hour = systime->wHour;
 110     t.tm_mday = systime->wDay;
 111     t.tm_mon = systime->wMonth;
 112     t.tm_year = systime->wYear;
 113     sec = mktime (&t);
 114
 115     /* set the new time */
 116     tv.tv_sec = sec;
 117     tv.tv_usec = systime->wMilliseconds * 1000;
 118     return !settimeofday(&tv, &tz);
 119 }
 120
 121
 122 /***********************************************************************
 123  *              GetTimeZoneInformation  (KERNEL32.302)
 124  */
 125 DWORD WINAPI GetTimeZoneInformation(LPTIME_ZONE_INFORMATION tzinfo)
 126 {
 127     time_t gmt, lt;
 128     struct tm *ptm;
 129     int daylight;
 130
 131     memset(tzinfo, 0, sizeof(TIME_ZONE_INFORMATION));
 132
 133     gmt = time(NULL);
 134     ptm=localtime(&gmt);
 135     daylight=ptm->tm_isdst;
 136
 137     ptm = gmtime(&gmt);
 138     ptm->tm_isdst=daylight;
 139     lt = mktime(ptm);
 140
 141     tzinfo->Bias = (lt - gmt) / 60;
 142     tzinfo->StandardBias = 0;
 143     tzinfo->DaylightBias = -60;
 144
 145     return TIME_ZONE_ID_UNKNOWN;
 146 }
 147
 148
 149 /***********************************************************************
 150  *              SetTimeZoneInformation  (KERNEL32.515)
 151  */
 152 BOOL WINAPI SetTimeZoneInformation(const LPTIME_ZONE_INFORMATION tzinfo)
 153 {
 154     struct timezone tz;
 155
 156     tz.tz_minuteswest = tzinfo->Bias;
 157 #ifdef DST_NONE
 158     tz.tz_dsttime = DST_NONE;
 159 #else
 160     tz.tz_dsttime = 0;
 161 #endif
 162     return !settimeofday(NULL, &tz);
 163 }
 164
 165
 166 /***********************************************************************
 167  *              GetSystemTimeAsFileTime  (KERNEL32)
 168  */
 169 VOID WINAPI GetSystemTimeAsFileTime(LPFILETIME systemtimeAsfiletime)
 170 {
 171     struct timeval now;
 172     gettimeofday( &now, 0 );
 173     /* FIXME: convert to UTC */
 174     DOSFS_UnixTimeToFileTime( now.tv_sec, systemtimeAsfiletime, now.tv_usec * 10 );
 175 }
 176
 177 /***********************************************************************
 178  *              SystemTimeToTzSpecificLocalTime32  (KERNEL32.683)
 179  */
 180 BOOL WINAPI SystemTimeToTzSpecificLocalTime(
 181   LPTIME_ZONE_INFORMATION lpTimeZoneInformation,
 182   LPSYSTEMTIME lpUniversalTime,
 183   LPSYSTEMTIME lpLocalTime) {
 184
 185   FIXME(":stub\n");
 186   SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
 187        return FALSE;
 188 }