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Implemented RtlTimeToElapsedTimeFields().

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svn path=/trunk/; revision=3303
This commit is contained in:
Eric Kohl 2002-07-25 16:58:58 +00:00
parent 873c86599e
commit 554d0a03f4
3 changed files with 81 additions and 47 deletions
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4
reactos/lib/ntdll/def/ntdll.def
View file

@ -1,4 +1,4 @@
; $Id: ntdll.def,v 1.83 2002/06/05 16:51:20 ekohl Exp $ ; $Id: ntdll.def,v 1.84 2002/07/25 16:58:58 ekohl Exp $
; ;
; ReactOS Operating System ; ReactOS Operating System
; ;
@ -557,7 +557,7 @@ RtlSubAuthoritySid@8
;RtlSubtreeSuccessor ;RtlSubtreeSuccessor
RtlSystemTimeToLocalTime@8 RtlSystemTimeToLocalTime@8
RtlTimeFieldsToTime@8 RtlTimeFieldsToTime@8
;RtlTimeToElapsedTimeFields RtlTimeToElapsedTimeFields@8
RtlTimeToSecondsSince1970@8 RtlTimeToSecondsSince1970@8
RtlTimeToSecondsSince1980@8 RtlTimeToSecondsSince1980@8
RtlTimeToTimeFields@8 RtlTimeToTimeFields@8

4
reactos/lib/ntdll/def/ntdll.edf
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@ -1,4 +1,4 @@
; $Id: ntdll.edf,v 1.72 2002/06/05 16:51:20 ekohl Exp $ ; $Id: ntdll.edf,v 1.73 2002/07/25 16:58:58 ekohl Exp $
; ;
; ReactOS Operating System ; ReactOS Operating System
; ;
@ -556,7 +556,7 @@ RtlSubAuthoritySid=RtlSubAuthoritySid@8
;RtlSubtreeSuccessor ;RtlSubtreeSuccessor
RtlSystemTimeToLocalTime=RtlSystemTimeToLocalTime@8 RtlSystemTimeToLocalTime=RtlSystemTimeToLocalTime@8
RtlTimeFieldsToTime=RtlTimeFieldsToTime@8 RtlTimeFieldsToTime=RtlTimeFieldsToTime@8
;RtlTimeToElapsedTimeFields RtlTimeToElapsedTimeFields=RtlTimeToElapsedTimeFields@8
RtlTimeToSecondsSince1970=RtlTimeToSecondsSince1970@8 RtlTimeToSecondsSince1970=RtlTimeToSecondsSince1970@8
RtlTimeToSecondsSince1980=RtlTimeToSecondsSince1980@8 RtlTimeToSecondsSince1980=RtlTimeToSecondsSince1980@8
RtlTimeToTimeFields=RtlTimeToTimeFields@8 RtlTimeToTimeFields=RtlTimeToTimeFields@8

120
reactos/lib/ntdll/rtl/time.c
View file

@ -1,4 +1,4 @@
/* $Id: time.c,v 1.9 2001/06/22 12:36:23 ekohl Exp $ /* $Id: time.c,v 1.10 2002/07/25 16:58:35 ekohl Exp $
* *
* COPYRIGHT: See COPYING in the top level directory * COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS kernel * PROJECT: ReactOS kernel
@ -55,6 +55,40 @@ static __inline void NormalizeTimeFields(CSHORT *FieldToNormalize,
/* FUNCTIONS *****************************************************************/ /* FUNCTIONS *****************************************************************/
VOID STDCALL
RtlTimeToElapsedTimeFields(IN PLARGE_INTEGER Time,
OUT PTIME_FIELDS TimeFields)
{
ULONGLONG ElapsedSeconds;
ULONG SecondsInDay;
ULONG SecondsInMinute;
/* Extract millisecond from time */
TimeFields->Milliseconds = (CSHORT)((Time->QuadPart % TICKSPERSEC) / TICKSPERMSEC);
/* Compute elapsed seconds */
ElapsedSeconds = (ULONGLONG)Time->QuadPart / TICKSPERSEC;
/* Compute seconds within the day */
SecondsInDay = ElapsedSeconds % SECSPERDAY;
/* Compute elapsed minutes within the day */
SecondsInMinute = SecondsInDay % SECSPERHOUR;
/* Compute elapsed time of day */
TimeFields->Hour = (CSHORT)(SecondsInDay / SECSPERHOUR);
TimeFields->Minute = (CSHORT)(SecondsInMinute / SECSPERMIN);
TimeFields->Second = (CSHORT)(SecondsInMinute % SECSPERMIN);
/* Compute elapsed days */
TimeFields->Day = (CSHORT)(ElapsedSeconds / SECSPERDAY);
/* The elapsed number of months and days cannot be calculated */
TimeFields->Month = 0;
TimeFields->Year = 0;
}
VOID STDCALL VOID STDCALL
RtlTimeToTimeFields(PLARGE_INTEGER liTime, RtlTimeToTimeFields(PLARGE_INTEGER liTime,
PTIME_FIELDS TimeFields) PTIME_FIELDS TimeFields)
@ -195,11 +229,11 @@ VOID STDCALL
RtlSecondsSince1970ToTime(ULONG SecondsSince1970, RtlSecondsSince1970ToTime(ULONG SecondsSince1970,
PLARGE_INTEGER Time) PLARGE_INTEGER Time)
{ {
LONGLONG llTime; LONGLONG llTime;
llTime = (SecondsSince1970 * TICKSPERSEC) + TICKSTO1970; llTime = (SecondsSince1970 * TICKSPERSEC) + TICKSTO1970;
*Time = *(LARGE_INTEGER *)&llTime; *Time = *(LARGE_INTEGER *)&llTime;
} }
@ -207,11 +241,11 @@ VOID STDCALL
RtlSecondsSince1980ToTime(ULONG SecondsSince1980, RtlSecondsSince1980ToTime(ULONG SecondsSince1980,
PLARGE_INTEGER Time) PLARGE_INTEGER Time)
{ {
LONGLONG llTime; LONGLONG llTime;
llTime = (SecondsSince1980 * TICKSPERSEC) + TICKSTO1980; llTime = (SecondsSince1980 * TICKSPERSEC) + TICKSTO1980;
*Time = *(LARGE_INTEGER *)&llTime; *Time = *(LARGE_INTEGER *)&llTime;
} }
@ -219,17 +253,17 @@ BOOLEAN STDCALL
RtlTimeToSecondsSince1970(PLARGE_INTEGER Time, RtlTimeToSecondsSince1970(PLARGE_INTEGER Time,
PULONG SecondsSince1970) PULONG SecondsSince1970)
{ {
LARGE_INTEGER liTime; LARGE_INTEGER liTime;
liTime.QuadPart = Time->QuadPart - TICKSTO1970; liTime.QuadPart = Time->QuadPart - TICKSTO1970;
liTime.QuadPart = liTime.QuadPart / TICKSPERSEC; liTime.QuadPart = liTime.QuadPart / TICKSPERSEC;
if (liTime.u.HighPart != 0) if (liTime.u.HighPart != 0)
return FALSE; return(FALSE);
*SecondsSince1970 = liTime.u.LowPart; *SecondsSince1970 = liTime.u.LowPart;
return TRUE; return(TRUE);
} }
@ -237,17 +271,17 @@ BOOLEAN STDCALL
RtlTimeToSecondsSince1980(PLARGE_INTEGER Time, RtlTimeToSecondsSince1980(PLARGE_INTEGER Time,
PULONG SecondsSince1980) PULONG SecondsSince1980)
{ {
LARGE_INTEGER liTime; LARGE_INTEGER liTime;
liTime.QuadPart = Time->QuadPart - TICKSTO1980; liTime.QuadPart = Time->QuadPart - TICKSTO1980;
liTime.QuadPart = liTime.QuadPart / TICKSPERSEC; liTime.QuadPart = liTime.QuadPart / TICKSPERSEC;
if (liTime.u.HighPart != 0) if (liTime.u.HighPart != 0)
return FALSE; return(FALSE);
*SecondsSince1980 = liTime.u.LowPart; *SecondsSince1980 = liTime.u.LowPart;
return TRUE; return(TRUE);
} }
@ -255,20 +289,20 @@ NTSTATUS STDCALL
RtlLocalTimeToSystemTime(PLARGE_INTEGER LocalTime, RtlLocalTimeToSystemTime(PLARGE_INTEGER LocalTime,
PLARGE_INTEGER SystemTime) PLARGE_INTEGER SystemTime)
{ {
SYSTEM_TIMEOFDAY_INFORMATION TimeInformation; SYSTEM_TIMEOFDAY_INFORMATION TimeInformation;
NTSTATUS Status; NTSTATUS Status;
Status = NtQuerySystemInformation (SystemTimeOfDayInformation, Status = NtQuerySystemInformation(SystemTimeOfDayInformation,
&TimeInformation, &TimeInformation,
sizeof(SYSTEM_TIMEOFDAY_INFORMATION), sizeof(SYSTEM_TIMEOFDAY_INFORMATION),
NULL); NULL);
if (!NT_SUCCESS(Status)) if (!NT_SUCCESS(Status))
return Status; return(Status);
SystemTime->QuadPart = LocalTime->QuadPart + SystemTime->QuadPart = LocalTime->QuadPart +
TimeInformation.TimeZoneBias.QuadPart; TimeInformation.TimeZoneBias.QuadPart;
return STATUS_SUCCESS; return(STATUS_SUCCESS);
} }
@ -276,20 +310,20 @@ NTSTATUS STDCALL
RtlSystemTimeToLocalTime(PLARGE_INTEGER SystemTime, RtlSystemTimeToLocalTime(PLARGE_INTEGER SystemTime,
PLARGE_INTEGER LocalTime) PLARGE_INTEGER LocalTime)
{ {
SYSTEM_TIMEOFDAY_INFORMATION TimeInformation; SYSTEM_TIMEOFDAY_INFORMATION TimeInformation;
NTSTATUS Status; NTSTATUS Status;
Status = NtQuerySystemInformation (SystemTimeOfDayInformation, Status = NtQuerySystemInformation(SystemTimeOfDayInformation,
&TimeInformation, &TimeInformation,
sizeof(SYSTEM_TIMEOFDAY_INFORMATION), sizeof(SYSTEM_TIMEOFDAY_INFORMATION),
NULL); NULL);
if (!NT_SUCCESS(Status)) if (!NT_SUCCESS(Status))
return Status; return(Status);
LocalTime->QuadPart = SystemTime->QuadPart - LocalTime->QuadPart = SystemTime->QuadPart -
TimeInformation.TimeZoneBias.QuadPart; TimeInformation.TimeZoneBias.QuadPart;
return STATUS_SUCCESS; return(STATUS_SUCCESS);
} }
/* EOF */ /* EOF */