mirror of
https://github.com/reactos/wine.git
synced 2024-11-25 12:49:45 +00:00
- Reordered some code from the existing helper _GetTimeZoneBias to
make it more general useful (and changed the helper names to TIME_xyz). - Make GetTimeZoneInformation return the correct zone id constants. - Changed some "const LPX_Y_Z" declarations to "const X_Y_Z *".
This commit is contained in:
Rein Klazes
Alexandre Julliard
parent
87fb440e71
commit
d694a376c7
@ -59,6 +59,237 @@ WINE_DEFAULT_DEBUG_CHANNEL(time);
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#define FILETIME2LL( pft, ll) \
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ll = (((LONGLONG)((pft)->dwHighDateTime))<<32) + (pft)-> dwLowDateTime ;
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/***********************************************************************
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* TIME_DayLightCompareDate
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*
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* Compares two dates without looking at the year
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*
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* RETURNS
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*
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* -1 if date < compareDate
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* 0 if date == compareDate
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* 1 if date > compareDate
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* -2 if an error occures
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*/
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static int TIME_DayLightCompareDate(
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const SYSTEMTIME *date, /* [in] The local time to compare. */
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const SYSTEMTIME *compareDate) /* [in] The daylight saving begin
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or end date */
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{
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int limit_day, dayinsecs;
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if (date->wMonth < compareDate->wMonth)
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return -1; /* We are in a month before the date limit. */
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if (date->wMonth > compareDate->wMonth)
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return 1; /* We are in a month after the date limit. */
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if (compareDate->wDayOfWeek <= 6)
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{
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SYSTEMTIME tmp;
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FILETIME tmp_ft;
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/* compareDate->wDay is interpreted as number of the week in the month
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* 5 means: the last week in the month */
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int weekofmonth = compareDate->wDay;
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/* calculate day of week for the first day in the month */
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memcpy(&tmp, date, sizeof(SYSTEMTIME));
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tmp.wDay = 1;
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tmp.wDayOfWeek = -1;
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if (weekofmonth == 5)
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{
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/* Go to the beginning of the next month. */
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if (++tmp.wMonth > 12)
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{
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tmp.wMonth = 1;
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++tmp.wYear;
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}
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}
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if (!SystemTimeToFileTime(&tmp, &tmp_ft))
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return -2;
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if (weekofmonth == 5)
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{
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LONGLONG t;
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FILETIME2LL( &tmp_ft, t)
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/* subtract one day */
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t -= (LONGLONG) 24*60*60*10000000;
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LL2FILETIME( t, &tmp_ft);
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}
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if (!FileTimeToSystemTime(&tmp_ft, &tmp))
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return -2;
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if (weekofmonth == 5)
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{
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/* calculate the last matching day of the week in this month */
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int dif = tmp.wDayOfWeek - compareDate->wDayOfWeek;
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if (dif < 0)
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dif += 7;
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limit_day = tmp.wDay - dif;
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}
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else
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{
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/* calculate the matching day of the week in the given week */
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int dif = compareDate->wDayOfWeek - tmp.wDayOfWeek;
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if (dif < 0)
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dif += 7;
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limit_day = tmp.wDay + 7*(weekofmonth-1) + dif;
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}
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}
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else
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{
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limit_day = compareDate->wDay;
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}
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/* convert to seconds */
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limit_day = ((limit_day * 24 + compareDate->wHour) * 60 +
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compareDate->wMinute ) * 60;
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dayinsecs = ((date->wDay * 24 + date->wHour) * 60 +
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date->wMinute ) * 60 + date->wSecond;
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/* and compare */
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return dayinsecs < limit_day ? -1 :
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dayinsecs > limit_day ? 1 :
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0; /* date is equal to the date limit. */
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}
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/***********************************************************************
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* TIME_CompTimeZoneID
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*
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* Computes the local time bias for a given time and time zone
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*
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* Returns:
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* TIME_ZONE_ID_INVALID An error occurred
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* TIME_ZONE_ID_UNKNOWN There are no transition time known
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* TIME_ZONE_ID_STANDARD Current time is standard time
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* TIME_ZONE_ID_DAYLIGHT Current time is dayligh saving time
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*/
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static BOOL TIME_CompTimeZoneID (
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const TIME_ZONE_INFORMATION *pTZinfo, /* [in] The time zone data. */
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FILETIME *lpFileTime, /* [in] The system or local time. */
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BOOL islocal /* [in] it is local time */
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)
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{
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int ret;
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BOOL beforeStandardDate, afterDaylightDate;
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DWORD retval = TIME_ZONE_ID_INVALID;
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LONGLONG llTime = 0; /* initialized to prevent gcc complaining */
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SYSTEMTIME SysTime;
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FILETIME ftTemp;
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if (pTZinfo->DaylightDate.wMonth != 0)
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{
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if (pTZinfo->StandardDate.wMonth == 0 ||
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pTZinfo->StandardDate.wDay<1 ||
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pTZinfo->StandardDate.wDay>5 ||
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pTZinfo->DaylightDate.wDay<1 ||
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pTZinfo->DaylightDate.wDay>5)
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{
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SetLastError(ERROR_INVALID_PARAMETER);
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return TIME_ZONE_ID_INVALID;
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}
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if (!islocal) {
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FILETIME2LL( lpFileTime, llTime );
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llTime -= ( pTZinfo->Bias + pTZinfo->DaylightBias )
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* (LONGLONG)600000000;
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LL2FILETIME( llTime, &ftTemp)
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lpFileTime = &ftTemp;
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}
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FileTimeToSystemTime(lpFileTime, &SysTime);
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/* check for daylight saving */
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ret = TIME_DayLightCompareDate( &SysTime, &pTZinfo->StandardDate);
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if (ret == -2)
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return TIME_ZONE_ID_INVALID;
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beforeStandardDate = ret < 0;
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if (!islocal) {
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llTime -= ( pTZinfo->StandardBias - pTZinfo->DaylightBias )
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* (LONGLONG)600000000;
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LL2FILETIME( llTime, &ftTemp)
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FileTimeToSystemTime(lpFileTime, &SysTime);
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}
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ret = TIME_DayLightCompareDate( &SysTime, &pTZinfo->DaylightDate);
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if (ret == -2)
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return TIME_ZONE_ID_INVALID;
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afterDaylightDate = ret >= 0;
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retval = TIME_ZONE_ID_STANDARD;
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if( pTZinfo->DaylightDate.wMonth < pTZinfo->StandardDate.wMonth ) {
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/* Northern hemisphere */
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if( beforeStandardDate && afterDaylightDate )
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retval = TIME_ZONE_ID_DAYLIGHT;
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} else /* Down south */
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if( beforeStandardDate || afterDaylightDate )
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retval = TIME_ZONE_ID_DAYLIGHT;
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} else
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/* No transition date */
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retval = TIME_ZONE_ID_UNKNOWN;
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return retval;
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}
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/***********************************************************************
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* TIME_TimeZoneID
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*
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* Calculates whether daylight saving is on now.
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*
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* Returns:
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* TIME_ZONE_ID_INVALID An error occurred
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* TIME_ZONE_ID_UNKNOWN There are no transition time known
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* TIME_ZONE_ID_STANDARD Current time is standard time
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* TIME_ZONE_ID_DAYLIGHT Current time is dayligh saving time
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*/
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static DWORD TIME_ZoneID(
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const TIME_ZONE_INFORMATION *pTzi /* Timezone info */
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)
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{
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FILETIME ftTime;
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GetSystemTimeAsFileTime( &ftTime);
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return TIME_CompTimeZoneID( pTzi, &ftTime, FALSE);
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}
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/***********************************************************************
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* TIME_GetTimezoneBias
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*
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* Calculates the local time bias for a given time zone
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*
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* RETURNS
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*
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* Returns TRUE when the time zone bias was calculated.
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*/
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static BOOL TIME_GetTimezoneBias(
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const TIME_ZONE_INFORMATION
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*pTZinfo, /* [in] The time zone data. */
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FILETIME *lpFileTime, /* [in] The system or local time. */
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BOOL islocal, /* [in] it is local time */
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LONG *pBias /* [out] The calulated bias in minutes */
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)
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{
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LONG bias = pTZinfo->Bias;
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DWORD tzid = TIME_CompTimeZoneID( pTZinfo, lpFileTime, islocal);
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if( tzid == TIME_ZONE_ID_INVALID)
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return FALSE;
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if (tzid == TIME_ZONE_ID_DAYLIGHT)
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bias += pTZinfo->DaylightBias;
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else if (tzid == TIME_ZONE_ID_STANDARD)
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bias += pTZinfo->StandardBias;
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*pBias = bias;
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return TRUE;
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}
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/***********************************************************************
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* SetLocalTime (KERNEL32.@)
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*
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@ -155,27 +386,28 @@ BOOL WINAPI SetSystemTimeAdjustment(
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return TRUE;
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}
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/***********************************************************************
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* GetTimeZoneInformation (KERNEL32.@)
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*
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* Get information about the current local time zone.
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*
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* RETURNS
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* Success: TIME_ZONE_ID_STANDARD. tzinfo contains the time zone info.
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* Failure: TIME_ZONE_ID_INVALID.
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* FIXME: return TIME_ZONE_ID_DAYLIGHT when daylight saving is on.
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* TIME_ZONE_ID_INVALID An error occurred
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* TIME_ZONE_ID_UNKNOWN There are no transition time known
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* TIME_ZONE_ID_STANDARD Current time is standard time
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* TIME_ZONE_ID_DAYLIGHT Current time is dayligh saving time
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*/
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DWORD WINAPI GetTimeZoneInformation(
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LPTIME_ZONE_INFORMATION tzinfo) /* [out] Destination for time zone information */
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{
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NTSTATUS status;
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if ((status = RtlQueryTimeZoneInformation(tzinfo)))
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if ((status = RtlQueryTimeZoneInformation(tzinfo))) {
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SetLastError( RtlNtStatusToDosError(status) );
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return TIME_ZONE_ID_STANDARD;
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return TIME_ZONE_ID_INVALID;
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}
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return TIME_ZoneID( tzinfo );
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}
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/***********************************************************************
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* SetTimeZoneInformation (KERNEL32.@)
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*
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@ -186,7 +418,7 @@ DWORD WINAPI GetTimeZoneInformation(
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* Failure: FALSE.
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*/
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BOOL WINAPI SetTimeZoneInformation(
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const LPTIME_ZONE_INFORMATION tzinfo) /* [in] The new time zone. */
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const TIME_ZONE_INFORMATION *tzinfo) /* [in] The new time zone. */
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{
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NTSTATUS status;
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if ((status = RtlSetTimeZoneInformation(tzinfo)))
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@ -194,198 +426,6 @@ BOOL WINAPI SetTimeZoneInformation(
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return !status;
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}
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/***********************************************************************
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* _DayLightCompareDate
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*
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* Compares two dates without looking at the year
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*
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* RETURNS
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*
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* -1 if date < compareDate
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* 0 if date == compareDate
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* 1 if date > compareDate
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* -2 if an error occures
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*/
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static int _DayLightCompareDate(
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const LPSYSTEMTIME date, /* [in] The local time to compare. */
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const LPSYSTEMTIME compareDate) /* [in] The daylight saving begin
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or end date */
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{
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int limit_day, dayinsecs;
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if (date->wMonth < compareDate->wMonth)
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return -1; /* We are in a month before the date limit. */
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if (date->wMonth > compareDate->wMonth)
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return 1; /* We are in a month after the date limit. */
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if (compareDate->wDayOfWeek <= 6)
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{
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SYSTEMTIME tmp;
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FILETIME tmp_ft;
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/* compareDate->wDay is interpreted as number of the week in the month
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* 5 means: the last week in the month */
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int weekofmonth = compareDate->wDay;
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/* calculate day of week for the first day in the month */
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memcpy(&tmp, date, sizeof(SYSTEMTIME));
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tmp.wDay = 1;
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tmp.wDayOfWeek = -1;
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if (weekofmonth == 5)
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{
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/* Go to the beginning of the next month. */
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if (++tmp.wMonth > 12)
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{
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tmp.wMonth = 1;
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++tmp.wYear;
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}
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}
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if (!SystemTimeToFileTime(&tmp, &tmp_ft))
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return -2;
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if (weekofmonth == 5)
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{
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LONGLONG t;
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FILETIME2LL( &tmp_ft, t)
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/* subtract one day */
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t -= (LONGLONG) 24*60*60*10000000;
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LL2FILETIME( t, &tmp_ft);
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}
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if (!FileTimeToSystemTime(&tmp_ft, &tmp))
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return -2;
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if (weekofmonth == 5)
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{
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/* calculate the last matching day of the week in this month */
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int dif = tmp.wDayOfWeek - compareDate->wDayOfWeek;
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if (dif < 0)
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dif += 7;
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limit_day = tmp.wDay - dif;
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}
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else
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{
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/* calculate the matching day of the week in the given week */
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int dif = compareDate->wDayOfWeek - tmp.wDayOfWeek;
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if (dif < 0)
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dif += 7;
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limit_day = tmp.wDay + 7*(weekofmonth-1) + dif;
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}
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}
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else
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{
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limit_day = compareDate->wDay;
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}
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/* convert to seconds */
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limit_day = ((limit_day * 24 + compareDate->wHour) * 60 +
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compareDate->wMinute ) * 60;
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dayinsecs = ((date->wDay * 24 + date->wHour) * 60 +
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date->wMinute ) * 60 + date->wSecond;
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/* and compare */
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return dayinsecs < limit_day ? -1 :
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dayinsecs > limit_day ? 1 :
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0; /* date is equal to the date limit. */
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}
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/***********************************************************************
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* _GetTimezoneBias
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*
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* Calculates the local time bias for a given time zone
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*
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* RETURNS
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*
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* Returns TRUE when the time zone bias was calculated.
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*/
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static BOOL _GetTimezoneBias(
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const LPTIME_ZONE_INFORMATION
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lpTimeZoneInformation, /* [in] The time zone data. */
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LPSYSTEMTIME lpSysOrLocalTime, /* [in] The system or local time. */
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BOOL islocal, /* [in] it is local time */
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LONG* pBias /* [out] The calulated bias in minutes */
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)
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{
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int ret;
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BOOL beforeStandardDate, afterDaylightDate;
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BOOL daylightsaving = FALSE;
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LONG bias = lpTimeZoneInformation->Bias;
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FILETIME ft;
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LONGLONG llTime = 0; /* initialized to prevent gcc complaining */
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SYSTEMTIME stTemp;
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LPSYSTEMTIME lpTime = lpSysOrLocalTime;
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if (lpTimeZoneInformation->DaylightDate.wMonth != 0)
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{
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if (lpTimeZoneInformation->StandardDate.wMonth == 0 ||
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lpTimeZoneInformation->StandardDate.wDay<1 ||
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lpTimeZoneInformation->StandardDate.wDay>5 ||
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lpTimeZoneInformation->DaylightDate.wDay<1 ||
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lpTimeZoneInformation->DaylightDate.wDay>5)
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{
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SetLastError(ERROR_INVALID_PARAMETER);
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return FALSE;
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}
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if (!islocal) {
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if (!SystemTimeToFileTime(lpSysOrLocalTime, &ft)) return -2;
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FILETIME2LL( &ft, llTime );
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llTime -= ( lpTimeZoneInformation->Bias +
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lpTimeZoneInformation->DaylightBias ) * (LONGLONG)600000000;
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LL2FILETIME( llTime, &ft)
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FileTimeToSystemTime(&ft, &stTemp);
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lpTime = &stTemp;
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}
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/* check for daylight saving */
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ret = _DayLightCompareDate(lpTime, &lpTimeZoneInformation->StandardDate);
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if (ret == -2)
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return FALSE;
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beforeStandardDate = ret < 0;
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if (!islocal) {
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llTime -= ( lpTimeZoneInformation->StandardBias -
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lpTimeZoneInformation->DaylightBias ) * (LONGLONG)600000000;
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LL2FILETIME( llTime, &ft)
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FileTimeToSystemTime(&ft, &stTemp);
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lpTime = &stTemp;
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}
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ret = _DayLightCompareDate(lpTime, &lpTimeZoneInformation->DaylightDate);
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if (ret == -2)
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return FALSE;
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afterDaylightDate = ret >= 0;
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if( lpTimeZoneInformation->DaylightDate.wMonth < /* Northern */
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lpTimeZoneInformation->StandardDate.wMonth ) { /* hemisphere */
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if( beforeStandardDate && afterDaylightDate )
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daylightsaving = TRUE;
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} else /* Down south */
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if( beforeStandardDate || afterDaylightDate )
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daylightsaving = TRUE;
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}
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if (daylightsaving)
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bias += lpTimeZoneInformation->DaylightBias;
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else if (lpTimeZoneInformation->StandardDate.wMonth != 0)
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bias += lpTimeZoneInformation->StandardBias;
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*pBias = bias;
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return TRUE;
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}
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/***********************************************************************
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* SystemTimeToTzSpecificLocalTime (KERNEL32.@)
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*
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@ -420,7 +460,7 @@ BOOL WINAPI SystemTimeToTzSpecificLocalTime(
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if (!SystemTimeToFileTime(lpUniversalTime, &ft))
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return FALSE;
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FILETIME2LL( &ft, llTime)
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if (!_GetTimezoneBias(&tzinfo, lpUniversalTime, FALSE, &lBias))
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if (!TIME_GetTimezoneBias(&tzinfo, &ft, FALSE, &lBias))
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return FALSE;
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/* convert minutes to 100-nanoseconds-ticks */
|
||||
llTime -= (LONGLONG)lBias * 600000000;
|
||||
@ -462,7 +502,7 @@ BOOL WINAPI TzSpecificLocalTimeToSystemTime(
|
||||
if (!SystemTimeToFileTime(lpLocalTime, &ft))
|
||||
return FALSE;
|
||||
FILETIME2LL( &ft, t)
|
||||
if (!_GetTimezoneBias(&tzinfo, lpLocalTime, TRUE, &lBias))
|
||||
if (!TIME_GetTimezoneBias(&tzinfo, &ft, TRUE, &lBias))
|
||||
return FALSE;
|
||||
/* convert minutes to 100-nanoseconds-ticks */
|
||||
t += (LONGLONG)lBias * 600000000;
|
||||
@ -894,12 +934,10 @@ VOID WINAPI GetSystemTime(LPSYSTEMTIME systime) /* [O] Destination for current t
|
||||
*/
|
||||
BOOL WINAPI GetDaylightFlag(void)
|
||||
{
|
||||
time_t t = time(NULL);
|
||||
struct tm *ptm = localtime( &t);
|
||||
return ptm->tm_isdst > 0;
|
||||
TIME_ZONE_INFORMATION tzinfo;
|
||||
return GetTimeZoneInformation( &tzinfo) == TIME_ZONE_ID_DAYLIGHT;
|
||||
}
|
||||
|
||||
|
||||
/***********************************************************************
|
||||
* DosDateTimeToFileTime (KERNEL32.@)
|
||||
*/
|
||||
|
||||
@ -1638,7 +1638,7 @@ DWORD WINAPI SetThreadIdealProcessor(HANDLE,DWORD);
|
||||
BOOL WINAPI SetThreadPriority(HANDLE,INT);
|
||||
BOOL WINAPI SetThreadPriorityBoost(HANDLE,BOOL);
|
||||
BOOL WINAPI SetThreadToken(PHANDLE,HANDLE);
|
||||
BOOL WINAPI SetTimeZoneInformation(const LPTIME_ZONE_INFORMATION);
|
||||
BOOL WINAPI SetTimeZoneInformation(const TIME_ZONE_INFORMATION *);
|
||||
BOOL WINAPI SetVolumeMountPointA(LPCSTR,LPCSTR);
|
||||
BOOL WINAPI SetVolumeMountPointW(LPCSTR,LPCSTR);
|
||||
#define SetVolumeMountPoint WINELIB_NAME_AW(SetVolumeMountPoint)
|
||||
|
||||
Loading…
Reference in New Issue
Block a user