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RtlCutoverTimeToSystemTime(): The 4th argument determines whether the cutover time of the current year or the next cutover time is calculated.
svn path=/trunk/; revision=12864
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@ -112,7 +112,7 @@ static __inline VOID
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InsertHeadList(
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IN PLIST_ENTRY ListHead,
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IN PLIST_ENTRY Entry)
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{
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{
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PLIST_ENTRY OldFlink;
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OldFlink = ListHead->Flink;
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Entry->Flink = OldFlink;
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@ -140,7 +140,7 @@ static __inline VOID
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InsertTailList(
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IN PLIST_ENTRY ListHead,
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IN PLIST_ENTRY Entry)
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{
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{
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PLIST_ENTRY OldBlink;
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OldBlink = ListHead->Blink;
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Entry->Flink = ListHead;
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@ -882,7 +882,7 @@ BOOLEAN STDCALL
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RtlCutoverTimeToSystemTime(IN PTIME_FIELDS CutoverTimeFields,
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OUT PLARGE_INTEGER SystemTime,
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IN PLARGE_INTEGER CurrentTime,
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IN ULONG Unknown);
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IN BOOLEAN ThisYearsCutoverOnly);
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NTSTATUS STDCALL
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RtlDecompressBuffer(IN USHORT CompressionFormat,
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@ -74,7 +74,7 @@ BOOLEAN STDCALL
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RtlCutoverTimeToSystemTime(IN PTIME_FIELDS CutoverTimeFields,
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OUT PLARGE_INTEGER SystemTime,
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IN PLARGE_INTEGER CurrentTime,
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IN ULONG Unknown)
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IN BOOLEAN ThisYearsCutoverOnly)
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{
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TIME_FIELDS AdjustedTimeFields;
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TIME_FIELDS CurrentTimeFields;
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@ -82,6 +82,7 @@ RtlCutoverTimeToSystemTime(IN PTIME_FIELDS CutoverTimeFields,
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LARGE_INTEGER CutoverSystemTime;
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CSHORT MonthLength;
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CSHORT Days;
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BOOLEAN NextYearsCutover = FALSE;
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/* Check fixed cutover time */
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if (CutoverTimeFields->Year != 0)
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@ -105,45 +106,60 @@ RtlCutoverTimeToSystemTime(IN PTIME_FIELDS CutoverTimeFields,
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RtlTimeToTimeFields(CurrentTime, &CurrentTimeFields);
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/* Compute the cutover time of the first day of the current month */
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AdjustedTimeFields.Year = CurrentTimeFields.Year;
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AdjustedTimeFields.Month = CutoverTimeFields->Month;
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AdjustedTimeFields.Day = 1;
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AdjustedTimeFields.Hour = CutoverTimeFields->Hour;
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AdjustedTimeFields.Minute = CutoverTimeFields->Minute;
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AdjustedTimeFields.Second = CutoverTimeFields->Second;
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AdjustedTimeFields.Milliseconds = CutoverTimeFields->Milliseconds;
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if (!RtlTimeFieldsToTime(&AdjustedTimeFields, &CutoverSystemTime))
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return FALSE;
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RtlTimeToTimeFields(&CutoverSystemTime, &CutoverSystemTimeFields);
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/* Adjust day to first matching weekday */
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if (CutoverSystemTimeFields.Weekday != CutoverTimeFields->Weekday)
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while (TRUE)
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{
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if (CutoverSystemTimeFields.Weekday < CutoverTimeFields->Weekday)
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Days = CutoverTimeFields->Weekday - CutoverSystemTimeFields.Weekday;
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else
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Days = DAYSPERWEEK - (CutoverSystemTimeFields.Weekday - CutoverTimeFields->Weekday);
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/* Compute the cutover time of the first day of the current month */
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AdjustedTimeFields.Year = CurrentTimeFields.Year;
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if (NextYearsCutover == TRUE)
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AdjustedTimeFields.Year++;
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AdjustedTimeFields.Day += Days;
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AdjustedTimeFields.Month = CutoverTimeFields->Month;
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AdjustedTimeFields.Day = 1;
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AdjustedTimeFields.Hour = CutoverTimeFields->Hour;
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AdjustedTimeFields.Minute = CutoverTimeFields->Minute;
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AdjustedTimeFields.Second = CutoverTimeFields->Second;
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AdjustedTimeFields.Milliseconds = CutoverTimeFields->Milliseconds;
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if (!RtlTimeFieldsToTime(&AdjustedTimeFields, &CutoverSystemTime))
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return FALSE;
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RtlTimeToTimeFields(&CutoverSystemTime, &CutoverSystemTimeFields);
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/* Adjust day to first matching weekday */
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if (CutoverSystemTimeFields.Weekday != CutoverTimeFields->Weekday)
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{
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if (CutoverSystemTimeFields.Weekday < CutoverTimeFields->Weekday)
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Days = CutoverTimeFields->Weekday - CutoverSystemTimeFields.Weekday;
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else
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Days = DAYSPERWEEK - (CutoverSystemTimeFields.Weekday - CutoverTimeFields->Weekday);
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AdjustedTimeFields.Day += Days;
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}
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/* Adjust the number of weeks */
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if (CutoverTimeFields->Day > 1)
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{
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Days = DAYSPERWEEK * (CutoverTimeFields->Day - 1);
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MonthLength = MonthLengths[IsLeapYear(AdjustedTimeFields.Year)][AdjustedTimeFields.Month - 1];
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if ((AdjustedTimeFields.Day + Days) > MonthLength)
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Days -= DAYSPERWEEK;
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AdjustedTimeFields.Day += Days;
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}
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if (!RtlTimeFieldsToTime(&AdjustedTimeFields, &CutoverSystemTime))
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return FALSE;
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if (ThisYearsCutoverOnly == TRUE ||
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NextYearsCutover == TRUE ||
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CutoverSystemTime.QuadPart >= CurrentTime->QuadPart)
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{
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break;
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}
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NextYearsCutover = TRUE;
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}
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/* Adjust the number of weeks */
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if (CutoverTimeFields->Day > 1)
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{
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Days = DAYSPERWEEK * (CutoverTimeFields->Day - 1);
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MonthLength = MonthLengths[IsLeapYear(AdjustedTimeFields.Year)][AdjustedTimeFields.Month - 1];
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if ((AdjustedTimeFields.Day + Days) > MonthLength)
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Days -= DAYSPERWEEK;
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AdjustedTimeFields.Day += Days;
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}
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if (!RtlTimeFieldsToTime(&AdjustedTimeFields, &CutoverSystemTime))
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return FALSE;
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SystemTime->QuadPart = CutoverSystemTime.QuadPart;
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return TRUE;
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