/* * Nt time functions. * * RtlTimeToTimeFields, RtlTimeFieldsToTime and defines are taken from ReactOS and * adapted to wine with special permissions of the author. This code is * Copyright 2002 Rex Jolliff (rex@lvcablemodem.com) * * Copyright 1999 Juergen Schmied * Copyright 2007 Dmitry Timoshkov * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA */ #include "config.h" #include "wine/port.h" #include #include #include #include #include #include #ifdef HAVE_UNISTD_H # include #endif #include "ntstatus.h" #define WIN32_NO_STATUS #define NONAMELESSUNION #include "windef.h" #include "winternl.h" #include "ddk/wdm.h" #include "wine/exception.h" #include "wine/debug.h" #include "ntdll_misc.h" WINE_DEFAULT_DEBUG_CHANNEL(ntdll); #define TICKSPERSEC 10000000 #define TICKSPERMSEC 10000 #define SECSPERDAY 86400 #define SECSPERHOUR 3600 #define SECSPERMIN 60 #define MINSPERHOUR 60 #define HOURSPERDAY 24 #define EPOCHWEEKDAY 1 /* Jan 1, 1601 was Monday */ #define DAYSPERWEEK 7 #define MONSPERYEAR 12 #define DAYSPERQUADRICENTENNIUM (365 * 400 + 97) #define DAYSPERNORMALQUADRENNIUM (365 * 4 + 1) /* 1601 to 1970 is 369 years plus 89 leap days */ #define SECS_1601_TO_1970 ((369 * 365 + 89) * (ULONGLONG)SECSPERDAY) #define TICKS_1601_TO_1970 (SECS_1601_TO_1970 * TICKSPERSEC) /* 1601 to 1980 is 379 years plus 91 leap days */ #define SECS_1601_TO_1980 ((379 * 365 + 91) * (ULONGLONG)SECSPERDAY) #define TICKS_1601_TO_1980 (SECS_1601_TO_1980 * TICKSPERSEC) static const int MonthLengths[2][MONSPERYEAR] = { { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 }, { 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 } }; static inline BOOL IsLeapYear(int Year) { return Year % 4 == 0 && (Year % 100 != 0 || Year % 400 == 0); } /****************************************************************************** * RtlTimeToTimeFields [NTDLL.@] * * Convert a time into a TIME_FIELDS structure. * * PARAMS * liTime [I] Time to convert. * TimeFields [O] Destination for the converted time. * * RETURNS * Nothing. */ VOID WINAPI RtlTimeToTimeFields( const LARGE_INTEGER *liTime, PTIME_FIELDS TimeFields) { int SecondsInDay; long int cleaps, years, yearday, months; long int Days; LONGLONG Time; /* Extract millisecond from time and convert time into seconds */ TimeFields->Milliseconds = (CSHORT) (( liTime->QuadPart % TICKSPERSEC) / TICKSPERMSEC); Time = liTime->QuadPart / TICKSPERSEC; /* The native version of RtlTimeToTimeFields does not take leap seconds * into account */ /* Split the time into days and seconds within the day */ Days = Time / SECSPERDAY; SecondsInDay = Time % SECSPERDAY; /* compute time of day */ TimeFields->Hour = (CSHORT) (SecondsInDay / SECSPERHOUR); SecondsInDay = SecondsInDay % SECSPERHOUR; TimeFields->Minute = (CSHORT) (SecondsInDay / SECSPERMIN); TimeFields->Second = (CSHORT) (SecondsInDay % SECSPERMIN); /* compute day of week */ TimeFields->Weekday = (CSHORT) ((EPOCHWEEKDAY + Days) % DAYSPERWEEK); /* compute year, month and day of month. */ cleaps=( 3 * ((4 * Days + 1227) / DAYSPERQUADRICENTENNIUM) + 3 ) / 4; Days += 28188 + cleaps; years = (20 * Days - 2442) / (5 * DAYSPERNORMALQUADRENNIUM); yearday = Days - (years * DAYSPERNORMALQUADRENNIUM)/4; months = (64 * yearday) / 1959; /* the result is based on a year starting on March. * To convert take 12 from Januari and Februari and * increase the year by one. */ if( months < 14 ) { TimeFields->Month = months - 1; TimeFields->Year = years + 1524; } else { TimeFields->Month = months - 13; TimeFields->Year = years + 1525; } /* calculation of day of month is based on the wonderful * sequence of INT( n * 30.6): it reproduces the * 31-30-31-30-31-31 month lengths exactly for small n's */ TimeFields->Day = yearday - (1959 * months) / 64 ; return; } /****************************************************************************** * RtlTimeFieldsToTime [NTDLL.@] * * Convert a TIME_FIELDS structure into a time. * * PARAMS * ftTimeFields [I] TIME_FIELDS structure to convert. * Time [O] Destination for the converted time. * * RETURNS * Success: TRUE. * Failure: FALSE. */ BOOLEAN WINAPI RtlTimeFieldsToTime( PTIME_FIELDS tfTimeFields, PLARGE_INTEGER Time) { int month, year, cleaps, day; /* FIXME: normalize the TIME_FIELDS structure here */ /* No, native just returns 0 (error) if the fields are not */ if( tfTimeFields->Milliseconds< 0 || tfTimeFields->Milliseconds > 999 || tfTimeFields->Second < 0 || tfTimeFields->Second > 59 || tfTimeFields->Minute < 0 || tfTimeFields->Minute > 59 || tfTimeFields->Hour < 0 || tfTimeFields->Hour > 23 || tfTimeFields->Month < 1 || tfTimeFields->Month > 12 || tfTimeFields->Day < 1 || tfTimeFields->Day > MonthLengths [ tfTimeFields->Month ==2 || IsLeapYear(tfTimeFields->Year)] [ tfTimeFields->Month - 1] || tfTimeFields->Year < 1601 ) return FALSE; /* now calculate a day count from the date * First start counting years from March. This way the leap days * are added at the end of the year, not somewhere in the middle. * Formula's become so much less complicate that way. * To convert: add 12 to the month numbers of Jan and Feb, and * take 1 from the year */ if(tfTimeFields->Month < 3) { month = tfTimeFields->Month + 13; year = tfTimeFields->Year - 1; } else { month = tfTimeFields->Month + 1; year = tfTimeFields->Year; } cleaps = (3 * (year / 100) + 3) / 4; /* nr of "century leap years"*/ day = (36525 * year) / 100 - cleaps + /* year * dayperyr, corrected */ (1959 * month) / 64 + /* months * daypermonth */ tfTimeFields->Day - /* day of the month */ 584817 ; /* zero that on 1601-01-01 */ /* done */ Time->QuadPart = (((((LONGLONG) day * HOURSPERDAY + tfTimeFields->Hour) * MINSPERHOUR + tfTimeFields->Minute) * SECSPERMIN + tfTimeFields->Second ) * 1000 + tfTimeFields->Milliseconds ) * TICKSPERMSEC; return TRUE; } /****************************************************************************** * RtlLocalTimeToSystemTime [NTDLL.@] * * Convert a local time into system time. * * PARAMS * LocalTime [I] Local time to convert. * SystemTime [O] Destination for the converted time. * * RETURNS * Success: STATUS_SUCCESS. * Failure: An NTSTATUS error code indicating the problem. */ NTSTATUS WINAPI RtlLocalTimeToSystemTime( const LARGE_INTEGER *LocalTime, PLARGE_INTEGER SystemTime) { SYSTEM_TIMEOFDAY_INFORMATION info; TRACE("(%p, %p)\n", LocalTime, SystemTime); NtQuerySystemInformation( SystemTimeOfDayInformation, &info, sizeof(info), NULL ); SystemTime->QuadPart = LocalTime->QuadPart + info.TimeZoneBias.QuadPart; return STATUS_SUCCESS; } /****************************************************************************** * RtlSystemTimeToLocalTime [NTDLL.@] * * Convert a system time into a local time. * * PARAMS * SystemTime [I] System time to convert. * LocalTime [O] Destination for the converted time. * * RETURNS * Success: STATUS_SUCCESS. * Failure: An NTSTATUS error code indicating the problem. */ NTSTATUS WINAPI RtlSystemTimeToLocalTime( const LARGE_INTEGER *SystemTime, PLARGE_INTEGER LocalTime ) { SYSTEM_TIMEOFDAY_INFORMATION info; TRACE("(%p, %p)\n", SystemTime, LocalTime); NtQuerySystemInformation( SystemTimeOfDayInformation, &info, sizeof(info), NULL ); LocalTime->QuadPart = SystemTime->QuadPart - info.TimeZoneBias.QuadPart; return STATUS_SUCCESS; } /****************************************************************************** * RtlTimeToSecondsSince1970 [NTDLL.@] * * Convert a time into a count of seconds since 1970. * * PARAMS * Time [I] Time to convert. * Seconds [O] Destination for the converted time. * * RETURNS * Success: TRUE. * Failure: FALSE, if the resulting value will not fit in a DWORD. */ BOOLEAN WINAPI RtlTimeToSecondsSince1970( const LARGE_INTEGER *Time, LPDWORD Seconds ) { ULONGLONG tmp = Time->QuadPart / TICKSPERSEC - SECS_1601_TO_1970; if (tmp > 0xffffffff) return FALSE; *Seconds = tmp; return TRUE; } /****************************************************************************** * RtlTimeToSecondsSince1980 [NTDLL.@] * * Convert a time into a count of seconds since 1980. * * PARAMS * Time [I] Time to convert. * Seconds [O] Destination for the converted time. * * RETURNS * Success: TRUE. * Failure: FALSE, if the resulting value will not fit in a DWORD. */ BOOLEAN WINAPI RtlTimeToSecondsSince1980( const LARGE_INTEGER *Time, LPDWORD Seconds ) { ULONGLONG tmp = Time->QuadPart / TICKSPERSEC - SECS_1601_TO_1980; if (tmp > 0xffffffff) return FALSE; *Seconds = tmp; return TRUE; } /****************************************************************************** * RtlSecondsSince1970ToTime [NTDLL.@] * * Convert a count of seconds since 1970 to a time. * * PARAMS * Seconds [I] Time to convert. * Time [O] Destination for the converted time. * * RETURNS * Nothing. */ void WINAPI RtlSecondsSince1970ToTime( DWORD Seconds, LARGE_INTEGER *Time ) { Time->QuadPart = Seconds * (ULONGLONG)TICKSPERSEC + TICKS_1601_TO_1970; } /****************************************************************************** * RtlSecondsSince1980ToTime [NTDLL.@] * * Convert a count of seconds since 1980 to a time. * * PARAMS * Seconds [I] Time to convert. * Time [O] Destination for the converted time. * * RETURNS * Nothing. */ void WINAPI RtlSecondsSince1980ToTime( DWORD Seconds, LARGE_INTEGER *Time ) { Time->QuadPart = Seconds * (ULONGLONG)TICKSPERSEC + TICKS_1601_TO_1980; } /****************************************************************************** * RtlTimeToElapsedTimeFields [NTDLL.@] * * Convert a time to a count of elapsed seconds. * * PARAMS * Time [I] Time to convert. * TimeFields [O] Destination for the converted time. * * RETURNS * Nothing. */ void WINAPI RtlTimeToElapsedTimeFields( const LARGE_INTEGER *Time, PTIME_FIELDS TimeFields ) { LONGLONG time; INT rem; time = Time->QuadPart / TICKSPERSEC; TimeFields->Milliseconds = (Time->QuadPart % TICKSPERSEC) / TICKSPERMSEC; /* time is now in seconds */ TimeFields->Year = 0; TimeFields->Month = 0; TimeFields->Day = time / SECSPERDAY; /* rem is now the remaining seconds in the last day */ rem = time % SECSPERDAY; TimeFields->Second = rem % 60; rem /= 60; TimeFields->Minute = rem % 60; TimeFields->Hour = rem / 60; } /*********************************************************************** * NtQuerySystemTime [NTDLL.@] * ZwQuerySystemTime [NTDLL.@] * * Get the current system time. * * PARAMS * time [O] Destination for the current system time. * * RETURNS * Success: STATUS_SUCCESS. * Failure: An NTSTATUS error code indicating the problem. */ NTSTATUS WINAPI NtQuerySystemTime( LARGE_INTEGER *time ) { return unix_funcs->NtQuerySystemTime( time ); } /*********************************************************************** * RtlGetSystemTimePrecise [NTDLL.@] * * Get a more accurate current system time. * * RETURNS * The current system time. */ LONGLONG WINAPI RtlGetSystemTimePrecise( void ) { return unix_funcs->RtlGetSystemTimePrecise(); } /****************************************************************************** * NtQueryPerformanceCounter [NTDLL.@] */ NTSTATUS WINAPI NtQueryPerformanceCounter( LARGE_INTEGER *counter, LARGE_INTEGER *frequency ) { NTSTATUS status; __TRY { status = unix_funcs->NtQueryPerformanceCounter( counter, frequency ); } __EXCEPT_PAGE_FAULT { return STATUS_ACCESS_VIOLATION; } __ENDTRY return status; } /****************************************************************************** * RtlQueryPerformanceCounter [NTDLL.@] */ BOOL WINAPI DECLSPEC_HOTPATCH RtlQueryPerformanceCounter( LARGE_INTEGER *counter ) { unix_funcs->NtQueryPerformanceCounter( counter, NULL ); return TRUE; } /****************************************************************************** * RtlQueryPerformanceFrequency [NTDLL.@] */ BOOL WINAPI DECLSPEC_HOTPATCH RtlQueryPerformanceFrequency( LARGE_INTEGER *frequency ) { frequency->QuadPart = TICKSPERSEC; return TRUE; } /****************************************************************************** * NtGetTickCount (NTDLL.@) * ZwGetTickCount (NTDLL.@) */ ULONG WINAPI DECLSPEC_HOTPATCH NtGetTickCount(void) { /* note: we ignore TickCountMultiplier */ return user_shared_data->u.TickCount.LowPart; } /*********************************************************************** * RtlQueryTimeZoneInformation [NTDLL.@] * * Get information about the current timezone. * * PARAMS * tzinfo [O] Destination for the retrieved timezone info. * * RETURNS * Success: STATUS_SUCCESS. * Failure: An NTSTATUS error code indicating the problem. */ NTSTATUS WINAPI RtlQueryTimeZoneInformation(RTL_TIME_ZONE_INFORMATION *ret) { return NtQuerySystemInformation( SystemTimeZoneInformation, ret, sizeof(*ret), NULL ); } /*********************************************************************** * RtlQueryDynamicTimeZoneInformation [NTDLL.@] * * Get information about the current timezone. * * PARAMS * tzinfo [O] Destination for the retrieved timezone info. * * RETURNS * Success: STATUS_SUCCESS. * Failure: An NTSTATUS error code indicating the problem. */ NTSTATUS WINAPI RtlQueryDynamicTimeZoneInformation(RTL_DYNAMIC_TIME_ZONE_INFORMATION *ret) { return NtQuerySystemInformation( SystemDynamicTimeZoneInformation, ret, sizeof(*ret), NULL ); } /*********************************************************************** * RtlSetTimeZoneInformation [NTDLL.@] * * Set the current time zone information. * * PARAMS * tzinfo [I] Timezone information to set. * * RETURNS * Success: STATUS_SUCCESS. * Failure: An NTSTATUS error code indicating the problem. * */ NTSTATUS WINAPI RtlSetTimeZoneInformation( const RTL_TIME_ZONE_INFORMATION *tzinfo ) { return STATUS_PRIVILEGE_NOT_HELD; } /*********************************************************************** * NtSetSystemTime [NTDLL.@] * ZwSetSystemTime [NTDLL.@] */ NTSTATUS WINAPI NtSetSystemTime(const LARGE_INTEGER *new, LARGE_INTEGER *old ) { return unix_funcs->NtSetSystemTime( new, old ); } /*********************************************************************** * RtlQueryUnbiasedInterruptTime [NTDLL.@] */ BOOL WINAPI RtlQueryUnbiasedInterruptTime(ULONGLONG *time) { ULONG high, low; if (!time) { RtlSetLastWin32ErrorAndNtStatusFromNtStatus( STATUS_INVALID_PARAMETER ); return FALSE; } do { high = user_shared_data->InterruptTime.High1Time; low = user_shared_data->InterruptTime.LowPart; } while (high != user_shared_data->InterruptTime.High2Time); /* FIXME: should probably subtract InterruptTimeBias */ *time = (ULONGLONG)high << 32 | low; return TRUE; }